La–Zn phases

15 phases (tier A 8, tier B 3, tier C 2, liquid 1, needs_review 1); 15 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 · full JSON · La–Zn system page · Markdown · field reference

Phases of the La–Zn system (15)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:la-zn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1074.26–1194.26 K, x(Zn) 0–0.02112	0	3
B2_BCC phase:la-zn:bcc-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1198.92 K, x(Zn) 0–0.5	6	1
DHCP phase:la-zn:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–749.99 K, x(Zn) 0–0	0	2
FCC_A1 phase:la-zn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 519.19–1174.33 K, x(Zn) 0–0.02718	2	2
HCP_A3 phase:la-zn:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2498.93 K, x(Zn) 1–1	2	2
LA2ZN17 phase:la-zn:la2zn17	Th2Zn17 · hR19 · R-3m (166)	tier B: DFT-supported (unique MP + OQMD match)	stable in 2 of 2 calculated diagram(s): 300–1245.8 K, x(Zn) 0.89474–0.89474	11	2
LA3ZN22 phase:la-zn:la3zn22	Ce3Zn22 · tI100 · I4_1/amd (141)	tier B: DFT-supported (unique MP + OQMD match)	stable in 2 of 2 calculated diagram(s): 300–1241.11 K, x(Zn) 0.88–0.88	6	2
LAZN_B2 phase:la-zn:lazn-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1085.16 K, x(Zn) 0.5–0.5	7	1
LAZN11 phase:la-zn:lazn11	BaCd11 · tI48 · I4_1/amd (141)	tier B: DFT-supported (unique MP + OQMD match)	stable in 2 of 2 calculated diagram(s): 300–1127.23 K, x(Zn) 0.91667–0.91667	10	2
LAZN13_D23 phase:la-zn:lazn13-d23	NaZn13 · D2_3 · cF112 · Fm-3c (226)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–976.85 K, x(Zn) 0.92857–0.92857	6	2
LAZN2 phase:la-zn:lazn2	Hg2K · oI12 · Imma (74)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1121.96 K, x(Zn) 0.66667–0.66667	13	2
LAZN4 phase:la-zn:lazn4	LaZn4 · oC20 · Cmcm (63)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1138.82 K, x(Zn) 0.8–0.8	9	2
LAZN5_D2D phase:la-zn:lazn5-d2d	CaCu5 · D2_d · hP6 · P6/mmm (191)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1178.38 K, x(Zn) 0.83333–0.83333	7	2
LAZN7 phase:la-zn:lazn7		needs_review	stable in 1 of 1 calculated diagram(s): 300–1213.35 K, x(Zn) 0.875–0.875	2	1
LIQUID phase:la-zn:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 692.67–2500 K, x(Zn) 0–1	48	2

BCC_A2 (La–Zn)

Id: phase:la-zn: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 2 of 2 calculated diagram(s): 1074.26–1194.26 K, x(Zn) 0–0.02112
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:la-zn:bcc-a2
tdb: tdb:LaZn-10Qi.tdb:A2_BCC, tdb:LaZn-10Qi.tdb:BCC_A2, tdb:LaZn-12Ber.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: A2_BCC, type code %B, sha256 97c5cfdc1bfd8927…

40: PHASE A2_BCC %B 2 1 3 !
41: CONST A2_BCC : LA ZN : VA : !

LaZn-10Qi.tdb: BCC_A2, type code %B, sha256 97c5cfdc1bfd8927…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : LA ZN : VA : !

LaZn-12Ber.tdb: BCC_A2, type code %B, sha256 e38dcc486f44a268…

41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : LA ZN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase

B2_BCC (La–Zn)

Id: phase:la-zn:bcc-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: LaZn-10Qi.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: partitioned order/disorder model in LaZn-10Qi.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 300–1198.92 K, x(Zn) 0–0.5
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:la-zn:bcc-b2, corpus:phase:la-zn:b2-bcc
paper: paper:10.1016/j.jallcom.2010.03.062:LaZn(B2)
tdb: tdb:LaZn-10Qi.tdb:B2_BCC

TDB models of B2_BCC (1): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: B2_BCC, type code %BO, sha256 97c5cfdc1bfd8927…

45: PHASE B2_BCC %BO 3 0.5 0.5 3 !
46: CONST B2_BCC : LA% ZN : LA ZN% : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase

DHCP (La–Zn)

Id: phase:la-zn: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 2 of 2 calculated diagram(s): 300–749.99 K, x(Zn) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:la-zn:dhcp-a3, corpus:phase:la-zn:dhcp
tdb: tdb:LaZn-10Qi.tdb:DHCP, tdb:LaZn-12Ber.tdb:DHCP

TDB models of DHCP (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: DHCP, type code %, sha256 97c5cfdc1bfd8927…

55: PHASE DHCP % 1 1 !
56: CONST DHCP : LA : !

LaZn-12Ber.tdb: DHCP, type code %, sha256 e38dcc486f44a268…

51: PHASE DHCP % 1 1 !
52: CONST DHCP : LA% ZN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase

FCC_A1 (La–Zn)

Id: phase:la-zn: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 2 of 2 calculated diagram(s): 519.19–1174.33 K, x(Zn) 0–0.02718
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:la-zn:fcc-a1
paper: paper:10.1016/j.jallcom.2010.03.062:Fcc
tdb: tdb:LaZn-10Qi.tdb:FCC_A1, tdb:LaZn-12Ber.tdb:FCC_A1

TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: FCC_A1, type code %A, sha256 97c5cfdc1bfd8927…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : LA% ZN : VA : !

LaZn-12Ber.tdb: FCC_A1, type code %A, sha256 e38dcc486f44a268…

36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : LA% ZN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase

HCP_A3 (La–Zn)

Id: phase:la-zn:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–2498.93 K, x(Zn) 1–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:la-zn:hcp-a3
paper: paper:10.1016/j.calphad.2011.11.004:hcp-Zn
tdb: tdb:LaZn-10Qi.tdb:HCP_A3, tdb:LaZn-12Ber.tdb:HCP_A3

TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: HCP_A3, type code %, sha256 97c5cfdc1bfd8927…

50: PHASE HCP_A3 % 2 1 0.5 !
51: CONST HCP_A3 : LA ZN% : VA : !

LaZn-12Ber.tdb: HCP_A3, type code %, sha256 e38dcc486f44a268…

46: PHASE HCP_A3 % 2 1 0.5 !
47: CONST HCP_A3 : ZN : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LA2ZN17 (La–Zn)

Id: phase:la-zn:la2zn17; status assigned
Structure: Th2Zn17 · hR19 · R-3m (166); type st:th2zn17-hr19; tier B: DFT-supported (unique MP + OQMD match); confidence high
Stoichiometry: La 0.1053, Zn 0.8947
Stability: stable in 2 of 2 calculated diagram(s): 300–1245.8 K, x(Zn) 0.89474–0.89474
Literature: 11 values (11 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:la-zn:la2zn17
mp: mp:mp-aaaabtld
oqmd: oqmd:oqmd-17369
paper: paper:10.1016/j.calphad.2011.11.004:La2Zn17, paper:10.1016/j.jallcom.2010.03.062:La2Zn17
tdb: tdb:LaZn-10Qi.tdb:LA2ZN17, tdb:LaZn-12Ber.tdb:LA2ZN17

TDB models of LA2ZN17 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LA2ZN17, type code %, sha256 97c5cfdc1bfd8927…

80: PHASE LA2ZN17 % 2 2 17 !
81: CONST LA2ZN17 : LA : ZN : !

LaZn-12Ber.tdb: LA2ZN17, type code %, sha256 e38dcc486f44a268…

86: PHASE LA2ZN17 % 2 2 17 !
87: CONST LA2ZN17 : LA : ZN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase
doi:10.1016/0022-5088(67)90001-x A. Iandelli, A. Palenzona, Zinc-rich phases of the rare-earth-zinc alloys, Journal of the Less Common Metals 12, 333-343 (1967).
cited as the source of values for this phase

LA3ZN22 (La–Zn)

Id: phase:la-zn:la3zn22; status assigned
Structure: Ce3Zn22 · tI100 · I4_1/amd (141); type st:ce3zn22-ti100; tier B: DFT-supported (unique MP + OQMD match); confidence high
Stoichiometry: La 0.1200, Zn 0.8800
Stability: stable in 2 of 2 calculated diagram(s): 300–1241.11 K, x(Zn) 0.88–0.88
Literature: 6 values (6 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:la-zn:la3zn22
mp: mp:mp-aaacqiai
oqmd: oqmd:oqmd-668320
paper: paper:10.1016/j.calphad.2011.11.004:La3Zn22, paper:10.1016/j.jallcom.2010.03.062:La3Zn22
tdb: tdb:LaZn-10Qi.tdb:LA3ZN22, tdb:LaZn-12Ber.tdb:LA3ZN22

TDB models of LA3ZN22 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LA3ZN22, type code %, sha256 97c5cfdc1bfd8927…

75: PHASE LA3ZN22 % 2 3 22 !
76: CONST LA3ZN22 : LA : ZN : !

LaZn-12Ber.tdb: LA3ZN22, type code %, sha256 e38dcc486f44a268…

81: PHASE LA3ZN22 % 2 3 22 !
82: CONST LA3ZN22 : LA : ZN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LAZN_B2 (La–Zn)

Id: phase:la-zn:lazn-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaadwp and oqmd-17583, space group 221
Stoichiometry: La 0.5000, Zn 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–1085.16 K, x(Zn) 0.5–0.5
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:la-zn:lazn-b2
mp: mp:mp-aaaaadwp
oqmd: oqmd:oqmd-17583
paper: paper:10.1016/j.calphad.2011.11.004:LaZn
tdb: tdb:LaZn-12Ber.tdb:LAZN_B2

TDB models of LAZN_B2 (1): PHASE and CONSTITUENT statements as written

LaZn-12Ber.tdb: LAZN_B2, type code %, sha256 e38dcc486f44a268…

56: PHASE LAZN_B2 % 2 1 1 !
57: CONST LAZN_B2 : LA : ZN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LAZN11 (La–Zn)

Id: phase:la-zn:lazn11; status assigned
Structure: BaCd11 · tI48 · I4_1/amd (141); type st:bacd11-ti48; tier B: DFT-supported (unique MP + OQMD match); confidence high
Stoichiometry: La 0.0833, Zn 0.9167
Stability: stable in 2 of 2 calculated diagram(s): 300–1127.23 K, x(Zn) 0.91667–0.91667
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:la-zn:lazn11
mp: mp:mp-aaabgmyx
oqmd: oqmd:oqmd-19301
paper: paper:10.1016/j.calphad.2011.11.004:LaZn11, paper:10.1016/j.jallcom.2010.03.062:LaZn11
tdb: tdb:LaZn-10Qi.tdb:LAZN11, tdb:LaZn-12Ber.tdb:LAZN11

TDB models of LAZN11 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LAZN11, type code %, sha256 97c5cfdc1bfd8927…

85: PHASE LAZN11 % 2 1 11 !
86: CONST LAZN11 : LA : ZN : !

LaZn-12Ber.tdb: LAZN11, type code %, sha256 e38dcc486f44a268…

91: PHASE LAZN11 % 2 1 11 !
92: CONST LAZN11 : LA : ZN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(67)90001-x A. Iandelli, A. Palenzona, Zinc-rich phases of the rare-earth-zinc alloys, Journal of the Less Common Metals 12, 333-343 (1967).
cited as the source of values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LAZN13_D23 (La–Zn)

Id: phase:la-zn:lazn13-d23; status assigned
Structure: NaZn13 · D2_3 · cF112 · Fm-3c (226); type st:d2-3-nazn13-cf112; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaacpxbe and oqmd-30675, space group 226
Stoichiometry: La 0.0714, Zn 0.9286
Stability: stable in 2 of 2 calculated diagram(s): 300–976.85 K, x(Zn) 0.92857–0.92857
Literature: 6 values (6 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:la-zn:lazn13-d23
mp: mp:mp-aaacpxbe
oqmd: oqmd:oqmd-30675
paper: paper:10.1016/j.calphad.2011.11.004:LaZn13, paper:10.1016/j.jallcom.2010.03.062:LaZn13
tdb: tdb:LaZn-10Qi.tdb:LAZN13_D23, tdb:LaZn-12Ber.tdb:LAZN13_D23

TDB models of LAZN13_D23 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LAZN13_D23, type code %, sha256 97c5cfdc1bfd8927…

90: PHASE LAZN13_D23 % 2 1 13 !
91: CONST LAZN13_D23 : LA : ZN : !

LaZn-12Ber.tdb: LAZN13_D23, type code %, sha256 e38dcc486f44a268…

96: PHASE LAZN13_D23 % 2 1 13 !
97: CONST LAZN13_D23 : LA : ZN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase
doi:10.1016/0022-5088(67)90001-x A. Iandelli, A. Palenzona, Zinc-rich phases of the rare-earth-zinc alloys, Journal of the Less Common Metals 12, 333-343 (1967).
cited as the source of values for this phase

LAZN2 (La–Zn)

Id: phase:la-zn:lazn2; status assigned
Structure: Hg2K · oI12 · Imma (74); type st:hg2k-oi12; 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
Caveat: not certain from the name or DFT alone (dft_space_group_74_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: La 0.3333, Zn 0.6667
Stability: stable in 2 of 2 calculated diagram(s): 300–1121.96 K, x(Zn) 0.66667–0.66667
Literature: 13 values (13 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:la-zn:lazn2
paper: paper:10.1016/j.calphad.2011.11.004:LaZn2, paper:10.1016/j.jallcom.2010.03.062:LaZn2
tdb: tdb:LaZn-10Qi.tdb:LAZN2, tdb:LaZn-12Ber.tdb:LAZN2

TDB models of LAZN2 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LAZN2, type code %, sha256 97c5cfdc1bfd8927…

60: PHASE LAZN2 % 2 1 2 !
61: CONST LAZN2 : LA : ZN : !

LaZn-12Ber.tdb: LAZN2, type code %, sha256 e38dcc486f44a268…

61: PHASE LAZN2 % 2 1 2 !
62: CONST LAZN2 : LA : ZN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LAZN4 (La–Zn)

Id: phase:la-zn:lazn4; status assigned
Structure: LaZn4 · oC20 · Cmcm (63); type st:lazn4-oc20; 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
Caveat: not certain from the name or DFT alone (dft_space_group_63_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: La 0.2000, Zn 0.8000
Stability: stable in 2 of 2 calculated diagram(s): 300–1138.82 K, x(Zn) 0.8–0.8
Literature: 9 values (9 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:la-zn:lazn4
paper: paper:10.1016/j.calphad.2011.11.004:LaZn4, paper:10.1016/j.jallcom.2010.03.062:LaZn4
tdb: tdb:LaZn-10Qi.tdb:LAZN4, tdb:LaZn-12Ber.tdb:LAZN4

TDB models of LAZN4 (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LAZN4, type code %, sha256 97c5cfdc1bfd8927…

65: PHASE LAZN4 % 2 1 4 !
66: CONST LAZN4 : LA : ZN : !

LaZn-12Ber.tdb: LAZN4, type code %, sha256 e38dcc486f44a268…

66: PHASE LAZN4 % 2 1 4 !
67: CONST LAZN4 : LA : ZN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LAZN5_D2D (La–Zn)

Id: phase:la-zn:lazn5-d2d; status assigned
Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type st:d2-d-cacu5-hp6; tier A: standard phase name; confidence high
Stoichiometry: La 0.1667, Zn 0.8333
Stability: stable in 2 of 2 calculated diagram(s): 300–1178.38 K, x(Zn) 0.83333–0.83333
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:la-zn:lazn5-d2d
paper: paper:10.1016/j.calphad.2011.11.004:LaZn5, paper:10.1016/j.jallcom.2010.03.062:LaZn5
tdb: tdb:LaZn-10Qi.tdb:LAZN5_D2D, tdb:LaZn-12Ber.tdb:LAZN5_D2D

TDB models of LAZN5_D2D (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LAZN5_D2D, type code %, sha256 97c5cfdc1bfd8927…

70: PHASE LAZN5_D2D % 2 1 5 !
71: CONST LAZN5_D2D : LA : ZN : !

LaZn-12Ber.tdb: LAZN5_D2D, type code %, sha256 e38dcc486f44a268…

71: PHASE LAZN5_D2D % 2 1 5 !
72: CONST LAZN5_D2D : LA : ZN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase

LAZN7 (La–Zn)

Id: phase:la-zn:lazn7; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (LaZn7) · ? — printed with a label mapped to this phase
Candidate (sgte_mmc2): (LaZn7) — Hallstedt 2025 mmc2 row for LAZN7: LaZn7
Stoichiometry: La 0.1250, Zn 0.8750
Stability: stable in 1 of 1 calculated diagram(s): 300–1213.35 K, x(Zn) 0.875–0.875
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:la-zn:lazn7
paper: paper:10.1016/j.calphad.2011.11.004:LaZn7
tdb: tdb:LaZn-12Ber.tdb:LAZN7

TDB models of LAZN7 (1): PHASE and CONSTITUENT statements as written

LaZn-12Ber.tdb: LAZN7, type code %, sha256 e38dcc486f44a268…

76: PHASE LAZN7 % 2 1 7 !
77: CONST LAZN7 : LA : ZN : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase

LIQUID (La–Zn)

Id: phase:la-zn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 692.67–2500 K, x(Zn) 0–1
Literature: 48 values (48 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:la-zn:liquid
paper: paper:10.1016/j.calphad.2011.11.004:Liquid, paper:10.1016/j.calphad.2011.11.004:liquid, paper:10.1016/j.jallcom.2010.03.062:L
tdb: tdb:LaZn-10Qi.tdb:LIQUID, tdb:LaZn-12Ber.tdb:LIQUID

TDB models of LIQUID (2): PHASE and CONSTITUENT statements as written

LaZn-10Qi.tdb: LIQUID, type code %, sha256 97c5cfdc1bfd8927…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : LA ZN : !

LaZn-12Ber.tdb: LIQUID, type code %, sha256 e38dcc486f44a268…

31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : LA ZN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2011.11.004 Alexandre Berche, Pierre Benigni, Jacques Rogez, Marie-Christine Record, Thermodynamic assessment of the La–Zn system, Calphad 36, 65-70 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.03.062 H.Y. Qi, G.X. Huang, R.D. Liu, K. Zhang, L.B. Liu, Z.P. Jin, Thermodynamic optimization of La–Zn and La–Mg–Zn systems, Journal of Alloys and Compounds 497, 336-343 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2011.05.001 A. Berche, P. Benigni, J. Rogez, M.C. Record, New experimental investigation of the lanthanum zinc phase diagram, Thermochimica Acta 523, 70-78 (2011).
cited as the source of values for this phase
doi:10.1016/0022-5088(67)90001-x A. Iandelli, A. Palenzona, Zinc-rich phases of the rare-earth-zinc alloys, Journal of the Less Common Metals 12, 333-343 (1967).
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). doi: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). doi: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.

@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}
}