# La–Sn phases
> La–Sn system: 15 phases (tier A 10, tier C 2, liquid 1, needs_review 2); 13 stable in a calculated diagram in the ORCHID phase registry, with names, structure type when the stored evidence supports an assignment under the stated tier rules, calculated stability, verbatim TDB PHASE/CONSTITUENT statements and example references.
HTML: https://data.orchid-project.org/phases/pages/LA-SN.html · Markdown: https://data.orchid-project.org/phases/pages/LA-SN.md
15 phases (tier A 10, tier C 2, liquid 1, needs_review 2); 13 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).
Data: [interactive registry](https://orchid-project.org/phases/?q=LA-SN) · [full JSON](https://data.orchid-project.org/phases/systems/LA-SN.json) · [La–Sn system page](https://data.orchid-project.org/systems/LA-SN.html) · [Markdown](https://data.orchid-project.org/phases/pages/LA-SN.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)
Table: Phases of the La–Sn system (15)
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [DIAMOND_A4](#phase-la-sn-a4-diamond); _phase:la-sn:a4-diamond_ | C (diamond) · A4 · cF8 · Fd-3m (227) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 |
| [BCT_A5](#phase-la-sn-a5-bct); _phase:la-sn:a5-bct_ | beta-Sn · A5 · tI4 · I4_1/amd (141) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–505.08 K, x(Sn) 1–1 | 10 | 4 |
| [BCC_A2](#phase-la-sn-bcc-a2); _phase:la-sn:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 1134–1199 K, x(Sn) 0–0 | 5 | 4 |
| [DHCP](#phase-la-sn-dhcp-a3); _phase:la-sn:dhcp-a3_ | alpha-La · A3' · hP4 · P6_3/mmc (194) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–550 K, x(Sn) 0–0 | 0 | 4 |
| [FCC_A1](#phase-la-sn-fcc-a1); _phase:la-sn:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 550–1134 K, x(Sn) 0–0 | 10 | 4 |
| [HCP_A3](#phase-la-sn-hcp-a3); _phase:la-sn:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 |
| [LA11SN10](#phase-la-sn-la11sn10); _phase:la-sn:la11sn10_ | | needs_review | stable in 4 of 4 calculated diagram(s): 300–1718.8 K, x(Sn) 0.476–0.47619 | 19 | 4 |
| [LA2SN3](#phase-la-sn-la2sn3); _phase:la-sn:la2sn3_ | Nd2Sn3 · aP20 · P-1 (2) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 4 of 4 calculated diagram(s): 300–1480 K, x(Sn) 0.6–0.6 | 17 | 4 |
| [LA3SN5](#phase-la-sn-la3sn5); _phase:la-sn:la3sn5_ | Pd5Pu3 · oC32 · Cmcm (63) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 4 of 4 calculated diagram(s): 300–1510.49 K, x(Sn) 0.625–0.625 | 53 | 4 |
| [LA5SN3_D88](#phase-la-sn-la5sn3-d88); _phase:la-sn:la5sn3-d88_ | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 674.91–1767.01 K, x(Sn) 0.375–0.375 | 8 | 1 |
| [LA5SN3_D8M](#phase-la-sn-la5sn3-d8m); _phase:la-sn:la5sn3-d8m_ | W5Si3 · D8_m · tI32 · I4/mcm (140) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1771.16 K, x(Sn) 0.375–0.375 | 6 | 4 |
| [LA5SN4](#phase-la-sn-la5sn4); _phase:la-sn:la5sn4_ | | needs_review | stable in 4 of 4 calculated diagram(s): 300–1847.93 K, x(Sn) 0.44444–0.445 | 27 | 4 |
| [LASN_B33](#phase-la-sn-lasn-b33); _phase:la-sn:lasn-b33_ | CrB · B33 · oC8 · Cmcm (63) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1580 K, x(Sn) 0.5–0.5 | 32 | 4 |
| [LASN3_L12](#phase-la-sn-lasn3-l12); _phase:la-sn:lasn3-l12_ | AuCu3 · L1_2 · cP4 · Pm-3m (221) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1432.18 K, x(Sn) 0.75–0.75 | 36 | 4 |
| [LIQUID](#phase-la-sn-liquid); _phase:la-sn:liquid_ | liquid | liquid | stable in 4 of 4 calculated diagram(s): 504.95–2500 K, x(Sn) 0–1 | 112 | 4 |
## DIAMOND_A4 (La–Sn)
- Id: `phase:la-sn:a4-diamond`; status `assigned`
- Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type `st:a4-c-diamond-cf8`; tier A: standard phase name; confidence high
- Stoichiometry: Sn 1.0000
- Stability: not stable in 4 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:a4-diamond)
Names (5): _corpus: _corpus:phase:la-sn:a4-diamond
_tdb: _tdb:LaSn-00Hua.tdb:DIAMOND_A4, tdb:LaSn-09Idb.tdb:DIAMOND_A4, tdb:LaSn-19Li-ass.tdb:DIAMOND_A4, tdb:LaSn-19Li-sub.tdb:DIAMOND_A4
### TDB models of DIAMOND_A4 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): DIAMOND_A4, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
49: PHASE DIAMOND_A4 % 1 1 !
50: CONST DIAMOND_A4 : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): DIAMOND_A4, type code %, sha256 `c160ccb92eeed473…`
~~~~text
54: PHASE DIAMOND_A4 % 1 1 !
55: CONST DIAMOND_A4 : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): DIAMOND_A4, type code %, sha256 `69d495c9f2d45735…`
~~~~text
55: PHASE DIAMOND_A4 % 1 1 !
56: CONST DIAMOND_A4 : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): DIAMOND_A4, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
51: PHASE DIAMOND_A4 % 1 1 !
52: CONST DIAMOND_A4 : SN : !
~~~~
Example references (3 of 3; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase_
## BCT_A5 (La–Sn)
- Id: `phase:la-sn:a5-bct`; status `assigned`
- Structure: beta-Sn · A5 · tI4 · I4_1/amd (141); type `st:a5-beta-sn-ti4`; tier A: standard phase name; confidence high
- Stoichiometry: Sn 1.0000
- Stability: stable in 4 of 4 calculated diagram(s): 300–505.08 K, x(Sn) 1–1
- Literature: 10 values (10 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:a5-bct)
Names (9): _corpus: _corpus:phase:la-sn:a5-bct, corpus:phase:la-sn:bct-a5
_paper: _paper:10.1007/s11669-019-00751-x:(βSn), paper:10.1016/j.calphad.2008.12.003:(βSn), paper:10.1016/s0925-8388(00)01077-x:βSn (bct)
_tdb: _tdb:LaSn-00Hua.tdb:BCT_A5, tdb:LaSn-09Idb.tdb:BCT_A5, tdb:LaSn-19Li-ass.tdb:BCT_A5, tdb:LaSn-19Li-sub.tdb:BCT_A5
### TDB models of BCT_A5 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): BCT_A5, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
54: PHASE BCT_A5 % 1 1 !
55: CONST BCT_A5 : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): BCT_A5, type code %, sha256 `c160ccb92eeed473…`
~~~~text
59: PHASE BCT_A5 % 1 1 !
60: CONST BCT_A5 : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): BCT_A5, type code %, sha256 `69d495c9f2d45735…`
~~~~text
60: PHASE BCT_A5 % 1 1 !
61: CONST BCT_A5 : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): BCT_A5, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
56: PHASE BCT_A5 % 1 1 !
57: CONST BCT_A5 : SN : !
~~~~
Example references (5 of 5; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
## BCC_A2 (La–Sn)
- Id: `phase:la-sn:bcc-a2`; status `assigned`
- Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 1134–1199 K, x(Sn) 0–0
- Literature: 5 values (5 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:bcc-a2)
Names (7): _corpus: _corpus:phase:la-sn:bcc-a2
_paper: _paper:10.1016/j.calphad.2008.12.003:γLa, paper:10.1016/s0925-8388(00)01077-x:γLa
_tdb: _tdb:LaSn-00Hua.tdb:BCC_A2, tdb:LaSn-09Idb.tdb:BCC_A2, tdb:LaSn-19Li-ass.tdb:BCC_A2, tdb:LaSn-19Li-sub.tdb:BCC_A2
### TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): BCC_A2, type code %B, sha256 `6d19dc319f4242fc…`
~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : LA% SN : VA : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): BCC_A2, type code %B, sha256 `c160ccb92eeed473…`
~~~~text
39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : LA% SN : VA : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): BCC_A2, type code %B, sha256 `69d495c9f2d45735…`
~~~~text
40: PHASE BCC_A2 %B 2 1 3 !
41: CONST BCC_A2 : LA% SN : VA : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): BCC_A2, type code %B, sha256 `fc06c1ddd8fbb979…`
~~~~text
36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : LA% SN : VA : !
~~~~
Example references (4 of 4; assessments first):
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
## DHCP (La–Sn)
- Id: `phase:la-sn:dhcp-a3`; status `assigned`
- Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type `st:a3-alpha-la-hp4`; tier A: standard phase name; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 300–550 K, x(Sn) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:dhcp-a3)
Names (6): _corpus: _corpus:phase:la-sn:dhcp-a3, corpus:phase:la-sn:dhcp
_tdb: _tdb:LaSn-00Hua.tdb:DHCP, tdb:LaSn-09Idb.tdb:DHCP, tdb:LaSn-19Li-ass.tdb:DHCP, tdb:LaSn-19Li-sub.tdb:DHCP
### TDB models of DHCP (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): DHCP, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
44: PHASE DHCP % 1 1 !
45: CONST DHCP : LA% SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): DHCP, type code %, sha256 `c160ccb92eeed473…`
~~~~text
49: PHASE DHCP % 1 1 !
50: CONST DHCP : LA% SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): DHCP, type code %, sha256 `69d495c9f2d45735…`
~~~~text
50: PHASE DHCP % 1 1 !
51: CONST DHCP : LA% SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): DHCP, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
46: PHASE DHCP % 1 1 !
47: CONST DHCP : LA% SN : !
~~~~
Example references (3 of 3; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase_
## FCC_A1 (La–Sn)
- Id: `phase:la-sn:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 550–1134 K, x(Sn) 0–0
- Literature: 10 values (10 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:fcc-a1)
Names (7): _corpus: _corpus:phase:la-sn:fcc-a1
_paper: _paper:10.1016/j.calphad.2008.12.003:βLa, paper:10.1016/s0925-8388(00)01077-x:βLa
_tdb: _tdb:LaSn-00Hua.tdb:FCC_A1, tdb:LaSn-09Idb.tdb:FCC_A1, tdb:LaSn-19Li-ass.tdb:FCC_A1, tdb:LaSn-19Li-sub.tdb:FCC_A1
### TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): FCC_A1, type code %A, sha256 `6d19dc319f4242fc…`
~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : LA% SN : VA : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): FCC_A1, type code %A, sha256 `c160ccb92eeed473…`
~~~~text
34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : LA% SN : VA : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): FCC_A1, type code %A, sha256 `69d495c9f2d45735…`
~~~~text
35: PHASE FCC_A1 %A 2 1 1 !
36: CONST FCC_A1 : LA% SN : VA : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): FCC_A1, type code %A, sha256 `fc06c1ddd8fbb979…`
~~~~text
31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : LA% SN : VA : !
~~~~
Example references (4 of 4; assessments first):
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
## HCP_A3 (La–Sn)
- Id: `phase:la-sn:hcp-a3`; status `assigned`
- Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high
- Stoichiometry: Sn 1.0000
- Stability: not stable in 4 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:hcp-a3)
Names (5): _corpus: _corpus:phase:la-sn:hcp-a3
_tdb: _tdb:LaSn-00Hua.tdb:HCP_A3, tdb:LaSn-09Idb.tdb:HCP_A3, tdb:LaSn-19Li-ass.tdb:HCP_A3, tdb:LaSn-19Li-sub.tdb:HCP_A3
### TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): HCP_A3, type code %A, sha256 `6d19dc319f4242fc…`
~~~~text
39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : SN : VA : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): HCP_A3, type code %A, sha256 `c160ccb92eeed473…`
~~~~text
44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : SN : VA : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): HCP_A3, type code %A, sha256 `69d495c9f2d45735…`
~~~~text
45: PHASE HCP_A3 %A 2 1 0.5 !
46: CONST HCP_A3 : SN : VA : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): HCP_A3, type code %A, sha256 `fc06c1ddd8fbb979…`
~~~~text
41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : SN : VA : !
~~~~
Example references (3 of 3; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase_
## LA11SN10 (La–Sn)
- Id: `phase:la-sn:la11sn10`; status `needs_review`
- No structure assigned. Why: assessment_declared_blocked_by:models_disagree_on_composition; models_disagree_on_composition; no_structure_token
- Candidate (literature_printed): Ge10Ho11 · tI84 — printed with a label mapped to this phase
- Candidate (sgte_mmc2): Ge10Ho11 · tI84 · I4/mmm (139) — Hallstedt 2025 mmc2 row for LA11SN10: La11Sn10
- Candidate (tdb_comment): Ge10Ho11 · tI84 · I4/mmm — LaSn-00Hua.tdb: 'Prototype Ge10Ho11 (tI84, I4/mmm)'
- Candidate (tdb_comment): Ge10Ho11 · tI84 · I4/mmm — LaSn-09Idb.tdb: 'Prototype Ge10Ho11 (tI84, I4/mmm)'
- Candidate (tdb_comment): Ge10Ho11 · tI84 · I4/mmm — LaSn-19Li-ass.tdb: 'Prototype Ge10Ho11 (tI84, I4/mmm)'
- Candidate (tdb_comment): Ge10Ho11 · tI84 · I4/mmm — LaSn-19Li-sub.tdb: 'Prototype Ge10Ho11 (tI84, I4/mmm)'
- Stability: stable in 4 of 4 calculated diagram(s): 300–1718.8 K, x(Sn) 0.476–0.47619
- Literature: 19 values (19 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:la11sn10)
Names (8): _corpus: _corpus:phase:la-sn:la11sn10
_paper: _paper:10.1007/s11669-019-00751-x:La11Sn10, paper:10.1016/j.calphad.2008.12.003:La11Sn10, paper:10.1016/s0925-8388(00)01077-x:La11Sn10
_tdb: _tdb:LaSn-00Hua.tdb:LA11SN10, tdb:LaSn-09Idb.tdb:LA11SN10, tdb:LaSn-19Li-ass.tdb:LA11SN10, tdb:LaSn-19Li-sub.tdb:LA11SN10
### TDB models of LA11SN10 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LA11SN10, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
70: PHASE LA11SN10 % 2 11 10 !
71: CONST LA11SN10 : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LA11SN10, type code %, sha256 `c160ccb92eeed473…`
~~~~text
79: PHASE LA11SN10 % 2 0.524 0.476 !
80: CONST LA11SN10 : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LA11SN10, type code %, sha256 `69d495c9f2d45735…`
~~~~text
76: PHASE LA11SN10 % 2 11 10 !
77: CONST LA11SN10 : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LA11SN10, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
72: PHASE LA11SN10 % 2 11 10 !
73: CONST LA11SN10 : LA : SN : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.jssc.2011.06.035](https://doi.org/10.1016/j.jssc.2011.06.035) Ines Dürr, Michael Schwarz, Caroline Röhr, The binary tin-rich lanthanum stannides La2Sn5 and La3Sn7—A structural and bond theoretical study, Journal of Solid State Chemistry 184, 2220-2230 (2011).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
## LA2SN3 (La–Sn)
- Id: `phase:la-sn:la2sn3`; status `assigned`
- Structure: Nd2Sn3 · aP20 · P-1 (2); type `st:nd2sn3-ap20`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: La 0.4000, Sn 0.6000
- Stability: stable in 4 of 4 calculated diagram(s): 300–1480 K, x(Sn) 0.6–0.6
- Literature: 17 values (17 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:la2sn3)
Names (8): _corpus: _corpus:phase:la-sn:la2sn3
_paper: _paper:10.1007/s11669-019-00751-x:La2Sn3, paper:10.1016/j.calphad.2008.12.003:La2Sn3, paper:10.1016/s0925-8388(00)01077-x:La2Sn3
_tdb: _tdb:LaSn-00Hua.tdb:LA2SN3, tdb:LaSn-09Idb.tdb:LA2SN3, tdb:LaSn-19Li-ass.tdb:LA2SN3, tdb:LaSn-19Li-sub.tdb:LA2SN3
### TDB models of LA2SN3 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LA2SN3, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
80: PHASE LA2SN3 % 2 2 3 !
81: CONST LA2SN3 : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LA2SN3, type code %, sha256 `c160ccb92eeed473…`
~~~~text
89: PHASE LA2SN3 % 2 0.4 0.6 !
90: CONST LA2SN3 : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LA2SN3, type code %, sha256 `69d495c9f2d45735…`
~~~~text
86: PHASE LA2SN3 % 2 2 3 !
87: CONST LA2SN3 : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LA2SN3, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
82: PHASE LA2SN3 % 2 2 3 !
83: CONST LA2SN3 : LA : SN : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1515/znb-2003-0606](https://doi.org/10.1515/znb-2003-0606) Maria L. Fornasini, Pietro Manfrinettib, Andrea Palenzonab, Sudesh K. Dharc, R\2\Sn\3\ (R = La – Nd, Sm): A Family of Intermetallic Compounds with their Own Triclinic Structure, Zeitschrift für Naturforschung B 58, 521-527 (2003).
_cited as the source of values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
## LA3SN5 (La–Sn)
- Id: `phase:la-sn:la3sn5`; status `assigned`
- Structure: Pd5Pu3 · oC32 · Cmcm (63); type `st:pd5pu3-oc32`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: La 0.3750, Sn 0.6250
- Stability: stable in 4 of 4 calculated diagram(s): 300–1510.49 K, x(Sn) 0.625–0.625
- Literature: 53 values (53 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:la3sn5)
Names (8): _corpus: _corpus:phase:la-sn:la3sn5
_paper: _paper:10.1007/s11669-019-00751-x:La3Sn5, paper:10.1016/j.calphad.2008.12.003:La3Sn5, paper:10.1016/s0925-8388(00)01077-x:La3Sn5
_tdb: _tdb:LaSn-00Hua.tdb:LA3SN5, tdb:LaSn-09Idb.tdb:LA3SN5, tdb:LaSn-19Li-ass.tdb:LA3SN5, tdb:LaSn-19Li-sub.tdb:LA3SN5
### TDB models of LA3SN5 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LA3SN5, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
85: PHASE LA3SN5 % 2 3 5 !
86: CONST LA3SN5 : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LA3SN5, type code %, sha256 `c160ccb92eeed473…`
~~~~text
94: PHASE LA3SN5 % 2 0.375 0.625 !
95: CONST LA3SN5 : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LA3SN5, type code %, sha256 `69d495c9f2d45735…`
~~~~text
91: PHASE LA3SN5 % 2 3 5 !
92: CONST LA3SN5 : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LA3SN5, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
87: PHASE LA3SN5 % 2 3 5 !
88: CONST LA3SN5 : LA : SN : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
- [doi:10.1002/zaac.19835010624](https://doi.org/10.1002/zaac.19835010624) G. Borzone, A. Borsese, R. Ferro, A Contribution to the Study of the Alloying Behaviour of the Rare Earths with Tin, Zeitschrift anorg allge chemie 501, 199-208 (1983).
_cited as the source of values for this phase_
## LA5SN3_D88 (La–Sn)
- Id: `phase:la-sn:la5sn3-d88`; status `assigned`
- Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type `st:d8-8-mn5si3-hp16`; tier A: standard phase name; confidence high
- Stoichiometry: La 0.6250, Sn 0.3750
- Stability: stable in 1 of 1 calculated diagram(s): 674.91–1767.01 K, x(Sn) 0.375–0.375
- Literature: 8 values (8 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:la5sn3-d88)
Names (3): _corpus: _corpus:phase:la-sn:la5sn3-d88
_paper: _paper:10.1016/j.calphad.2008.12.003:βLa5Sn3
_tdb: _tdb:LaSn-09Idb.tdb:LA5SN3_D88
### TDB models of LA5SN3_D88 (1): PHASE and CONSTITUENT statements as written
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LA5SN3_D88, type code %, sha256 `c160ccb92eeed473…`
~~~~text
69: PHASE LA5SN3_D88 % 2 0.625 0.375 !
70: CONST LA5SN3_D88 : LA : SN : !
~~~~
Example references (2 of 2; assessments first):
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
## LA5SN3_D8M (La–Sn)
- Id: `phase:la-sn:la5sn3-d8m`; status `assigned`
- Structure: W5Si3 · D8_m · tI32 · I4/mcm (140); type `st:d8-m-w5si3-ti32`; tier A: standard phase name; confidence high
- Stoichiometry: La 0.6250, Sn 0.3750
- Stability: stable in 4 of 4 calculated diagram(s): 300–1771.16 K, x(Sn) 0.375–0.375
- Literature: 6 values (6 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:la5sn3-d8m)
Names (7): _corpus: _corpus:phase:la-sn:la5sn3-d8m
_paper: _paper:10.1016/j.calphad.2008.12.003:αLa5Sn3, paper:10.1016/s0925-8388(00)01077-x:La5Sn3
_tdb: _tdb:LaSn-00Hua.tdb:LA5SN3_D8M, tdb:LaSn-09Idb.tdb:LA5SN3_D8M, tdb:LaSn-19Li-ass.tdb:LA5SN3_D8M, tdb:LaSn-19Li-sub.tdb:LA5SN3_D8M
### TDB models of LA5SN3_D8M (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LA5SN3_D8M, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
60: PHASE LA5SN3_D8M % 2 5 3 !
61: CONST LA5SN3_D8M : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LA5SN3_D8M, type code %, sha256 `c160ccb92eeed473…`
~~~~text
64: PHASE LA5SN3_D8M % 2 0.625 0.375 !
65: CONST LA5SN3_D8M : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LA5SN3_D8M, type code %, sha256 `69d495c9f2d45735…`
~~~~text
66: PHASE LA5SN3_D8M % 2 5 3 !
67: CONST LA5SN3_D8M : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LA5SN3_D8M, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
62: PHASE LA5SN3_D8M % 2 5 3 !
63: CONST LA5SN3_D8M : LA : SN : !
~~~~
Example references (4 of 4; assessments first):
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
## LA5SN4 (La–Sn)
- Id: `phase:la-sn:la5sn4`; status `needs_review`
- No structure assigned. Why: assessment_declared_blocked_by:models_disagree_on_composition; models_disagree_on_composition; no_structure_token
- Candidate (dft_mp): Pnma (62) — on-hull MP La5Sn4 at x(SN)=0.4444
- Candidate (dft_oqmd): Pnma (62) — on-hull OQMD La5 Sn4 at x(SN)=0.4444
- Candidate (literature_printed): Ge4Sm5 · oP36 — printed with a label mapped to this phase
- Candidate (sgte_mmc2): Ge4Sm5 · oP36 · Pnma (62) — Hallstedt 2025 mmc2 row for LA5SN4: La5Sn4
- Candidate (tdb_comment): Ge4Sm5 · oP36 · Pnma — LaSn-00Hua.tdb: 'Prototype Ge4Sm5 (oP36, Pnma)'
- Candidate (tdb_comment): Ge4Sm5 · oP36 · Pnma — LaSn-09Idb.tdb: 'Prototype Ge4Sm5 (oP36, Pnma)'
- Candidate (tdb_comment): Ge4Sm5 · oP36 · Pnma — LaSn-19Li-ass.tdb: 'Prototype Ge4Sm5 (oP36, Pnma)'
- Candidate (tdb_comment): Ge4Sm5 · oP36 · Pnma — LaSn-19Li-sub.tdb: 'Prototype Ge4Sm5 (oP36, Pnma)'
- Stability: stable in 4 of 4 calculated diagram(s): 300–1847.93 K, x(Sn) 0.44444–0.445
- Literature: 27 values (27 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:la5sn4)
Names (8): _corpus: _corpus:phase:la-sn:la5sn4
_paper: _paper:10.1007/s11669-019-00751-x:La5Sn4, paper:10.1016/j.calphad.2008.12.003:La5Sn4, paper:10.1016/s0925-8388(00)01077-x:La5Sn4
_tdb: _tdb:LaSn-00Hua.tdb:LA5SN4, tdb:LaSn-09Idb.tdb:LA5SN4, tdb:LaSn-19Li-ass.tdb:LA5SN4, tdb:LaSn-19Li-sub.tdb:LA5SN4
### TDB models of LA5SN4 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LA5SN4, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
65: PHASE LA5SN4 % 2 5 4 !
66: CONST LA5SN4 : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LA5SN4, type code %, sha256 `c160ccb92eeed473…`
~~~~text
74: PHASE LA5SN4 % 2 0.555 0.445 !
75: CONST LA5SN4 : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LA5SN4, type code %, sha256 `69d495c9f2d45735…`
~~~~text
71: PHASE LA5SN4 % 2 5 4 !
72: CONST LA5SN4 : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LA5SN4, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
67: PHASE LA5SN4 % 2 5 4 !
68: CONST LA5SN4 : LA : SN : !
~~~~
Example references (5 of 5; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1002/zaac.19835010624](https://doi.org/10.1002/zaac.19835010624) G. Borzone, A. Borsese, R. Ferro, A Contribution to the Study of the Alloying Behaviour of the Rare Earths with Tin, Zeitschrift anorg allge chemie 501, 199-208 (1983).
_cited as the source of values for this phase_
## LASN_B33 (La–Sn)
- Id: `phase:la-sn:lasn-b33`; status `assigned`
- Structure: CrB · B33 · oC8 · Cmcm (63); type `st:b33-crb-oc8`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaacfxzr and oqmd-30671, space group 63
- Stoichiometry: La 0.5000, Sn 0.5000
- Stability: stable in 4 of 4 calculated diagram(s): 300–1580 K, x(Sn) 0.5–0.5
- Literature: 32 values (32 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:lasn-b33)
Names (10): _corpus: _corpus:phase:la-sn:lasn-b33
_mp: _mp:mp-aaacfxzr
_oqmd: _oqmd:oqmd-30671
_paper: _paper:10.1007/s11669-019-00751-x:LaSn, paper:10.1016/j.calphad.2008.12.003:LaSn, paper:10.1016/s0925-8388(00)01077-x:LaSn
_tdb: _tdb:LaSn-00Hua.tdb:LASN_B33, tdb:LaSn-09Idb.tdb:LASN_B33, tdb:LaSn-19Li-ass.tdb:LASN_B33, tdb:LaSn-19Li-sub.tdb:LASN_B33
### TDB models of LASN_B33 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LASN_B33, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
75: PHASE LASN_B33 % 2 1 1 !
76: CONST LASN_B33 : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LASN_B33, type code %, sha256 `c160ccb92eeed473…`
~~~~text
84: PHASE LASN_B33 % 2 0.5 0.5 !
85: CONST LASN_B33 : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LASN_B33, type code %, sha256 `69d495c9f2d45735…`
~~~~text
81: PHASE LASN_B33 % 2 1 1 !
82: CONST LASN_B33 : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LASN_B33, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
77: PHASE LASN_B33 % 2 1 1 !
78: CONST LASN_B33 : LA : SN : !
~~~~
Example references (5 of 5; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
## LASN3_L12 (La–Sn)
- Id: `phase:la-sn:lasn3-l12`; status `assigned`
- Structure: AuCu3 · L1_2 · cP4 · Pm-3m (221); type `st:l1-2-aucu3-cp4`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaayj and oqmd-643082, space group 221
- Stoichiometry: La 0.2500, Sn 0.7500
- Stability: stable in 4 of 4 calculated diagram(s): 300–1432.18 K, x(Sn) 0.75–0.75
- Literature: 36 values (36 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:lasn3-l12)
Names (10): _corpus: _corpus:phase:la-sn:lasn3-l12
_mp: _mp:mp-aaaaaayj
_oqmd: _oqmd:oqmd-643082
_paper: _paper:10.1007/s11669-019-00751-x:LaSn3, paper:10.1016/j.calphad.2008.12.003:LaSn3, paper:10.1016/s0925-8388(00)01077-x:LaSn3
_tdb: _tdb:LaSn-00Hua.tdb:LASN3_L12, tdb:LaSn-09Idb.tdb:LASN3_L12, tdb:LaSn-19Li-ass.tdb:LASN3_L12, tdb:LaSn-19Li-sub.tdb:LASN3_L12
### TDB models of LASN3_L12 (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LASN3_L12, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
90: PHASE LASN3_L12 % 2 1 3 !
91: CONST LASN3_L12 : LA : SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LASN3_L12, type code %, sha256 `c160ccb92eeed473…`
~~~~text
99: PHASE LASN3_L12 % 2 0.25 0.75 !
100: CONST LASN3_L12 : LA : SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LASN3_L12, type code %, sha256 `69d495c9f2d45735…`
~~~~text
96: PHASE LASN3_L12 % 2 1 3 !
97: CONST LASN3_L12 : LA : SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LASN3_L12, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
92: PHASE LASN3_L12 % 2 1 3 !
93: CONST LASN3_L12 : LA : SN : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
- [doi:10.1016/0040-6031(73)80026-7](https://doi.org/10.1016/0040-6031%2873%2980026-7) A. Palenzona, Dynamic differential calorimetry of intermetallic compounds I. Heat of formation, heat and entropy of fusion of rare earth—tin compounds, Thermochimica Acta 5, 473-480 (1973).
_cited as the source of values for this phase_
## LIQUID (La–Sn)
- Id: `phase:la-sn:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 504.95–2500 K, x(Sn) 0–1
- Literature: 112 values (112 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:la-sn:liquid)
Names (11): _corpus: _corpus:phase:la-sn:liquid
_paper: _paper:10.1007/s11669-019-00751-x:L, paper:10.1007/s11669-019-00751-x:liquid, paper:10.1016/j.calphad.2008.12.003:Liq, paper:10.1016/j.calphad.2008.12.003:liquid, paper:10.1016/s0925-8388(00)01077-x:L, paper:10.1016/s0925-8388(00)01077-x:Liq.
_tdb: _tdb:LaSn-00Hua.tdb:LIQUID, tdb:LaSn-09Idb.tdb:LIQUID, tdb:LaSn-19Li-ass.tdb:LIQUID, tdb:LaSn-19Li-sub.tdb:LIQUID
### TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written
[LaSn-00Hua.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-00Hua.tdb): LIQUID, type code %, sha256 `6d19dc319f4242fc…`
~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : LA SN : !
~~~~
[LaSn-09Idb.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-09Idb.tdb): LIQUID, type code %, sha256 `c160ccb92eeed473…`
~~~~text
29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : LA LASN SN : !
~~~~
[LaSn-19Li-ass.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-ass.tdb): LIQUID, type code %, sha256 `69d495c9f2d45735…`
~~~~text
30: PHASE LIQUID:L % 1 1 !
31: CONST LIQUID:L : LA LASN SN : !
~~~~
[LaSn-19Li-sub.tdb](https://orchid-project.org/data/databases/sgte-binary/LaSn-19Li-sub.tdb): LIQUID, type code %, sha256 `fc06c1ddd8fbb979…`
~~~~text
26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : LA SN : !
~~~~
Example references (7 of 7; assessments first):
- [doi:10.1007/s11669-019-00751-x](https://doi.org/10.1007/s11669-019-00751-x) Xiaojing Li, Shuhong Liu, Yuling Liu, Yong Du, Thermodynamic Re-assessment of the Lanthanum-Tin System, J. Phase Equilib. Diffus. 40, 653-667 (2019).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2008.12.003](https://doi.org/10.1016/j.calphad.2008.12.003) M. Idbenali, C. Servant, N. Selhaoui, L. Bouirden, A thermodynamic reassessment of the La–Sn system, Calphad 33, 398-404 (2009).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/S0925-8388(00)01077-X](https://doi.org/10.1016/S0925-8388%2800%2901077-X) M. Huang, X. Su, F. Yin, P. Zhang, Z. Li, C. Chen, J. Alloys Compd., 309, 147-53(2000).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1007/bf02645375](https://doi.org/10.1007/bf02645375) A Palenzona, S Cirafici, The la-sn (lanthanum-tin) system, JPE 13, 42-49 (1992).
_cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2016.08.004](https://doi.org/10.1016/j.calphad.2016.08.004) J. Kim, E. Thibodeau, K. Tetley-Gerard, and I.-H. Jung, Critical Evaluation and Thermodynamic Optimization of the Sn–RE Systems: Part I. Sn-RE System (RE=La, Ce, Pr, Nd and Sm), Calphad, 2016, 55, p 113-133
_cited as the source of values for this phase_
- [doi:10.1016/0040-6031(73)80026-7](https://doi.org/10.1016/0040-6031%2873%2980026-7) A. Palenzona, Dynamic differential calorimetry of intermetallic compounds I. Heat of formation, heat and entropy of fusion of rare earth—tin compounds, Thermochimica Acta 5, 473-480 (1973).
_cited as the source of values for this phase_
- [doi:10.1016/0364-5916(91)90030-n](https://doi.org/10.1016/0364-5916%2891%2990030-n) A.T. Dinsdale, SGTE data for pure elements, Calphad 15, 317-425 (1991).
_cited as the source of values for this phase_
## Please cite
- R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735970
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065
Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work).
Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.
```bibtex
@misc{orchid_phase_registry_2026,
author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
title = {{ORCHID-Registry: phase registry of binary systems}},
version = {2026.10},
publisher = {Zenodo},
year = {2026},
doi = {10.5281/zenodo.23735970},
url = {https://doi.org/10.5281/zenodo.23735970},
note = {Version 1, machine-extracted}
}
@misc{orchid_data_2026,
author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
title = {{ORCHID data: umbrella record of the ORCHID datasets}},
version = {2026.10},
publisher = {Zenodo},
year = {2026},
doi = {10.5281/zenodo.23736065},
url = {https://doi.org/10.5281/zenodo.23736065},
note = {Version 1, machine-extracted}
}
```
---
Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).