# Ga–Se phases
> Ga–Se system: 9 phases (tier A 6, tier C 2, liquid 1); 0 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/GA-SE.html · Markdown: https://data.orchid-project.org/phases/pages/GA-SE.md
9 phases (tier A 6, tier C 2, liquid 1); 0 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=GA-SE) · [full JSON](https://data.orchid-project.org/phases/systems/GA-SE.json) · [Ga–Se system page](https://data.orchid-project.org/systems/GA-SE.html) · [Markdown](https://data.orchid-project.org/phases/pages/GA-SE.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)
Table: Phases of the Ga–Se system (9)
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [ORTHORHOMBIC_A11](#phase-ga-se-a11-orthorhombic); _phase:ga-se:a11-orthorhombic_ | alpha-Ga · A11 · oC8 · Cmce (64) | tier A: standard phase name | no calculated diagram | 5 | 1 |
| [HEXAGONAL_A8](#phase-ga-se-a8-hexagonal); _phase:ga-se:a8-hexagonal_ | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | no calculated diagram | 6 | 1 |
| [BCC_A2](#phase-ga-se-bcc-a2); _phase:ga-se:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | no calculated diagram | 0 | 1 |
| [FCC_A1](#phase-ga-se-fcc-a1); _phase:ga-se:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | no calculated diagram | 0 | 1 |
| [GA2SE3_B3](#phase-ga-se-ga2se3-b3); _phase:ga-se:ga2se3-b3_ | ZnS (sphalerite) · B3 · cF8 · F-43m (216) | tier A: standard phase name | no calculated diagram | 29 | 1 |
| [GA2SE3_BETA](#phase-ga-se-ga2se3-beta); _phase:ga-se:ga2se3-beta_ | beta-Ga2Se3 · mC20 · Cc (9) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | no calculated diagram | 21 | 1 |
| [GASE](#phase-ga-se-gase); _phase:ga-se:gase_ | GaSe · hP8 · P-6m2 (187) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | no calculated diagram | 52 | 1 |
| [HCP_A3](#phase-ga-se-hcp-a3); _phase:ga-se:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | no calculated diagram | 0 | 1 |
| [ION](#phase-ga-se-ion); _phase:ga-se:ion_ | liquid | liquid | no calculated diagram | 0 | 1 |
## ORTHORHOMBIC_A11 (Ga–Se)
- Id: `phase:ga-se:a11-orthorhombic`; status `assigned`
- Structure: alpha-Ga · A11 · oC8 · Cmce (64); type `st:a11-alpha-ga-oc8`; tier A: standard phase name; confidence high
- Stoichiometry: Ga 1.0000
- Stability: no calculated diagram
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:a11-orthorhombic)
Names (3): _corpus: _corpus:phase:ga-se:a11-orthorhombic
_paper: _paper:10.1016/j.calphad.2008.03.004:Ga
_tdb: _tdb:GaSe-08Zhe.tdb:ORTHORHOMBIC_A11
### TDB models of ORTHORHOMBIC_A11 (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): ORTHORHOMBIC_A11, type code %, sha256 `a1c458a9361989a9…`
~~~~text
67: PHASE ORTHORHOMBIC_A11 % 1 1 !
68: CONST ORTHORHOMBIC_A11 : GA : !
~~~~
Example references (2 of 2; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1143/jjap.13.417](https://doi.org/10.1143/jjap.13.417) Hiromichi Suzuki, Ryûichi Mori, Phase Study on Binary System Ga-Se, Jpn. J. Appl. Phys. 13, 417-423 (1974).
_cited as the source of values for this phase_
## HEXAGONAL_A8 (Ga–Se)
- Id: `phase:ga-se:a8-hexagonal`; status `assigned`
- Structure: gamma-Se · A8 · hP3 · P3_121 (152); type `st:a8-gamma-se-hp3`; tier A: standard phase name; confidence high
- Stoichiometry: Se 1.0000
- Stability: no calculated diagram
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:a8-hexagonal)
Names (3): _corpus: _corpus:phase:ga-se:a8-hexagonal
_paper: _paper:10.1016/j.calphad.2008.03.004:Se
_tdb: _tdb:GaSe-08Zhe.tdb:HEXAGONAL_A8
### TDB models of HEXAGONAL_A8 (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): HEXAGONAL_A8, type code %, sha256 `a1c458a9361989a9…`
~~~~text
62: PHASE HEXAGONAL_A8 % 1 1 !
63: CONST HEXAGONAL_A8 : SE : !
~~~~
Example references (2 of 2; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1143/jjap.13.417](https://doi.org/10.1143/jjap.13.417) Hiromichi Suzuki, Ryûichi Mori, Phase Study on Binary System Ga-Se, Jpn. J. Appl. Phys. 13, 417-423 (1974).
_cited as the source of values for this phase_
## BCC_A2 (Ga–Se)
- Id: `phase:ga-se:bcc-a2`; status `assigned`
- Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high
- Stoichiometry: Ga 1.0000
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:bcc-a2)
Names (2): _corpus: _corpus:phase:ga-se:bcc-a2
_tdb: _tdb:GaSe-08Zhe.tdb:BCC_A2
### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): BCC_A2, type code %B, sha256 `a1c458a9361989a9…`
~~~~text
52: PHASE BCC_A2 %B 2 1 3 !
53: CONST BCC_A2 : GA : VA : !
~~~~
Example references (1 of 1; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase_
## FCC_A1 (Ga–Se)
- Id: `phase:ga-se:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stoichiometry: Ga 1.0000
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:fcc-a1)
Names (2): _corpus: _corpus:phase:ga-se:fcc-a1
_tdb: _tdb:GaSe-08Zhe.tdb:FCC_A1
### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): FCC_A1, type code %A, sha256 `a1c458a9361989a9…`
~~~~text
47: PHASE FCC_A1 %A 2 1 1 !
48: CONST FCC_A1 : GA : VA : !
~~~~
Example references (1 of 1; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase_
## GA2SE3_B3 (Ga–Se)
- Id: `phase:ga-se:ga2se3-b3`; status `assigned`
- Structure: ZnS (sphalerite) · B3 · cF8 · F-43m (216); type `st:b3-zns-sphalerite-cf8`; tier A: standard phase name; confidence high
- Stability: no calculated diagram
- Literature: 29 values (29 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:ga2se3-b3)
Names (3): _corpus: _corpus:phase:ga-se:ga2se3-b3
_paper: _paper:10.1016/j.calphad.2008.03.004:α-Ga2Se3
_tdb: _tdb:GaSe-08Zhe.tdb:GA2SE3_B3
### TDB models of GA2SE3_B3 (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): GA2SE3_B3, type code %, sha256 `a1c458a9361989a9…`
~~~~text
84: PHASE GA2SE3_B3 % 2 2 3 !
85: CONST GA2SE3_B3 : GA VA : SE VA : !
~~~~
Example references (5 of 5; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/0022-4596(81)90397-2](https://doi.org/10.1016/0022-4596%2881%2990397-2) J.C. Mikkelsen, Critical examination of Ga2Se3 phase equilibria, Journal of Solid State Chemistry 40, 312-317 (1981).
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(71)90135-4](https://doi.org/10.1016/0022-5088%2871%2990135-4) J. Dieleman, A.R.C. Engelfriet, The phase diagram of the system Ga1−xSex for 0.5 ⩽ x ⩽ 0.6 and 300 K ⩽ T ⩽ 1500 K, Journal of the Less Common Metals 25, 231-233 (1971).
_cited as the source of values for this phase_
- [doi:10.1143/jjap.13.417](https://doi.org/10.1143/jjap.13.417) Hiromichi Suzuki, Ryûichi Mori, Phase Study on Binary System Ga-Se, Jpn. J. Appl. Phys. 13, 417-423 (1974).
_cited as the source of values for this phase_
- [doi:10.1002/zaac.19342190106](https://doi.org/10.1002/zaac.19342190106) Wilhelm Klemm, Hans Ulrich v. Vogel, Messungen an Gallium‐ und Indium‐Verbindungen. X. Über die Chalkogenide von Gallium und Indium, Z. Anorg. Allg. Chem. 219, 45-64 (1934).
_cited as the source of values for this phase_
## GA2SE3_BETA (Ga–Se)
- Id: `phase:ga-se:ga2se3-beta`; status `assigned`
- Structure: beta-Ga2Se3 · mC20 · Cc (9); type `st:beta-ga2se3-mc20`; 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 (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ga 0.4000, Se 0.6000
- Stability: no calculated diagram
- Literature: 21 values (21 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:ga2se3-beta)
Names (3): _corpus: _corpus:phase:ga-se:ga2se3-beta
_paper: _paper:10.1016/j.calphad.2008.03.004:β-Ga2Se3
_tdb: _tdb:GaSe-08Zhe.tdb:GA2SE3_BETA
### TDB models of GA2SE3_BETA (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): GA2SE3_BETA, type code %, sha256 `a1c458a9361989a9…`
~~~~text
79: PHASE GA2SE3_BETA % 2 2 3 !
80: CONST GA2SE3_BETA : GA : SE : !
~~~~
Example references (5 of 5; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1002/9783527619825](https://doi.org/10.1002/9783527619825) Ihsan Barin, Thermochemical Data of Pure Substances, (1995).
_cited as the source of values for this phase_
- [doi:10.1007/s10789-005-0275-x](https://doi.org/10.1007/s10789-005-0275-x) A. V. Tyurin, K. S. Gavrichev, L. N. Golushina, V. E. Gorbunov, V. P. Zlomanov, Heat Capacity and Thermodynamic Functions of Ga2Se3 from 14 to 320 K, Inorg Mater 41, 1139-1143 (2005).
_cited as the source of values for this phase_
- [doi:10.1016/0022-4596(81)90397-2](https://doi.org/10.1016/0022-4596%2881%2990397-2) J.C. Mikkelsen, Critical examination of Ga2Se3 phase equilibria, Journal of Solid State Chemistry 40, 312-317 (1981).
_cited as the source of values for this phase_
- [doi:10.1143/jjap.13.417](https://doi.org/10.1143/jjap.13.417) Hiromichi Suzuki, Ryûichi Mori, Phase Study on Binary System Ga-Se, Jpn. J. Appl. Phys. 13, 417-423 (1974).
_cited as the source of values for this phase_
## GASE (Ga–Se)
- Id: `phase:ga-se:gase`; status `assigned`
- Structure: GaSe · hP8 · P-6m2 (187); type `st:gase-hp8`; 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 (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ga 0.5000, Se 0.5000
- Stability: no calculated diagram
- Literature: 52 values (52 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:gase)
Names (3): _corpus: _corpus:phase:ga-se:gase
_paper: _paper:10.1016/j.calphad.2008.03.004:GaSe
_tdb: _tdb:GaSe-08Zhe.tdb:GASE
### TDB models of GASE (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): GASE, type code %, sha256 `a1c458a9361989a9…`
~~~~text
73: PHASE GASE % 2 1 1 !
74: CONST GASE : GA : SE : !
~~~~
Example references (7 of 7; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1143/jjap.13.417](https://doi.org/10.1143/jjap.13.417) Hiromichi Suzuki, Ryûichi Mori, Phase Study on Binary System Ga-Se, Jpn. J. Appl. Phys. 13, 417-423 (1974).
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(71)90135-4](https://doi.org/10.1016/0022-5088%2871%2990135-4) J. Dieleman, A.R.C. Engelfriet, The phase diagram of the system Ga1−xSex for 0.5 ⩽ x ⩽ 0.6 and 300 K ⩽ T ⩽ 1500 K, Journal of the Less Common Metals 25, 231-233 (1971).
_cited as the source of values for this phase_
- [doi:10.1002/9783527619825](https://doi.org/10.1002/9783527619825) Ihsan Barin, Thermochemical Data of Pure Substances, (1995).
_cited as the source of values for this phase_
- [doi:10.1002/ange.19560681616](https://doi.org/10.1002/ange.19560681616) H. Hahn, Ch. de Lorent, Über eine Bildung von V\2\O\3\‐ und V\2\S\3\‐ Einkristallen, Angewandte Chemie 68, 523-523 (1956).
_cited as the source of values for this phase_
- [doi:10.1002/zaac.19342190106](https://doi.org/10.1002/zaac.19342190106) Wilhelm Klemm, Hans Ulrich v. Vogel, Messungen an Gallium‐ und Indium‐Verbindungen. X. Über die Chalkogenide von Gallium und Indium, Z. Anorg. Allg. Chem. 219, 45-64 (1934).
_cited as the source of values for this phase_
- [doi:10.1023/b:inma.0000016082.33860.43](https://doi.org/10.1023/b:inma.0000016082.33860.43) A. Yu. Zavrazhnov, D. N. Turchen, Zh. V. Dobrokhotova, V. V. Volkov, E. V. Makhonina, V. S. Pervov, Nonadditivity of Properties and the Possibility of Formation of Ensembles of Incommensurate Structures in the GaSe–Ga2Se3 System, Inorganic Materials 40, 107-114 (2004).
_cited as the source of values for this phase_
## HCP_A3 (Ga–Se)
- Id: `phase:ga-se: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: Ga 1.0000
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:hcp-a3)
Names (2): _corpus: _corpus:phase:ga-se:hcp-a3
_tdb: _tdb:GaSe-08Zhe.tdb:HCP_A3
### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): HCP_A3, type code %A, sha256 `a1c458a9361989a9…`
~~~~text
57: PHASE HCP_A3 %A 2 1 0.5 !
58: CONST HCP_A3 : GA : VA : !
~~~~
Example references (1 of 1; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models this phase_
## ION (Ga–Se)
- Id: `phase:ga-se:ion`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ga-se:ion)
Names (3): _corpus: _corpus:phase:ga-se:ion, corpus:phase:ga-se:liquid
_tdb: _tdb:GaSe-08Zhe.tdb:ION
### TDB models of ION (1): PHASE and CONSTITUENT statements as written
[GaSe-08Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/GaSe-08Zhe.tdb): ION, type code %, sha256 `a1c458a9361989a9…`
~~~~text
42: PHASE ION:Y % 2 1 1 !
43: CONST ION:Y : GA+3 : SE SE-2 VA : !
~~~~
Example references (1 of 1; assessments first):
- [doi:10.1016/j.calphad.2008.03.004](https://doi.org/10.1016/j.calphad.2008.03.004) F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008).
_assessment that models 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).