Ge–Mn phases

14 phases (tier A 9, tier C 1, liquid 1, needs_review 3); 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 · full JSON · Ge–Mn system page · Markdown · field reference

Phases of the Ge–Mn system (14)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:ge-mn:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1220.31 K, x(Mn) 0–0.00167	5	2
BCC_A2 phase:ge-mn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1402.67–1573.12 K, x(Mn) 0.97078–1	2	2
CBCC_A12 phase:ge-mn:cbcc-a12	alpha-Mn · A12 · cI58 · I-43m (217)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1338.72 K, x(Mn) 1–1	0	2
CUB_A13 phase:ge-mn:cub-a13	beta-Mn · A13 · cP20 · P4_132 (213)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 333.72–1408.72 K, x(Mn) 0.90413–1	0	2
FCC_A1 phase:ge-mn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1526 K, x(Mn) 0.87602–1	7	2
GE2MN5_HT phase:ge-mn:ge2mn5-ht		needs_review	stable in 2 of 2 calculated diagram(s): 906.7–1230 K, x(Mn) 0.71065–0.74	18	2
GE2MN5_LT phase:ge-mn:ge2mn5-lt		needs_review	stable in 2 of 2 calculated diagram(s): 300–970 K, x(Mn) 0.71429–0.71429	5	2
GE3MN5_D88 phase:ge-mn:ge3mn5-d88	Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1234.65 K, x(Mn) 0.625–0.625	13	2
GE8MN11 phase:ge-mn:ge8mn11	Cr11Ge8 · oP76 · Pnma (62)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1069.9 K, x(Mn) 0.57895–0.57895	8	2
GEMN2_B82 phase:ge-mn:gemn2-b82	InNi2 · B8_2 · hP6 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1073.74–1232 K, x(Mn) 0.66144–0.67427	10	2
GEMN3_D019 phase:ge-mn:gemn3-d019	Ni3Sn · D0_19 · hP8 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 948–1195.44 K, x(Mn) 0.75534–0.78303	12	2
GEMN3_D022 phase:ge-mn:gemn3-d022		needs_review	stable in 2 of 2 calculated diagram(s): 300–1052.56 K, x(Mn) 0.75–0.75	5	2
HCP_A3 phase:ge-mn:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
LIQUID phase:ge-mn:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 995.12–2500 K, x(Mn) 0–1	35	2

DIAMOND_A4 (Ge–Mn)

Id: phase:ge-mn: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
Stability: stable in 2 of 2 calculated diagram(s): 300–1220.31 K, x(Mn) 0–0.00167
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:a4-diamond
paper: paper:10.1016/j.intermet.2013.12.009:DIAMOND
tdb: tdb:GeMn-14Ber.tdb:DIAMOND_A4, tdb:GeMn-15Ber.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: DIAMOND_A4, type code %, sha256 4243bd74c559c91e…

58: PHASE DIAMOND_A4 % 1 1 !
59: CONST DIAMOND_A4 : GE : !

GeMn-15Ber.tdb: DIAMOND_A4, type code %, sha256 da527b95e844a2c0…

56: PHASE DIAMOND_A4 % 1 1 !
57: CONST DIAMOND_A4 : GE% MN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase
doi:10.1021/ja01152a518 James H. Downing, Daniel Cubicciotti, On the Freezing Point Diagram of the Germanium—Manganese System, J. Am. Chem. Soc. 73, 4025-4025 (1951).
cited as the source of values for this phase

BCC_A2 (Ge–Mn)

Id: phase:ge-mn: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): 1402.67–1573.12 K, x(Mn) 0.97078–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:bcc-a2
paper: paper:10.1016/j.intermet.2013.12.009:BCC_A2
tdb: tdb:GeMn-14Ber.tdb:BCC_A2, tdb:GeMn-15Ber.tdb:BCC_A2

TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: BCC_A2, type code %B, sha256 4243bd74c559c91e…

48: PHASE BCC_A2 %B 2 1 3 !
49: CONST BCC_A2 : GE MN : VA : !

GeMn-15Ber.tdb: BCC_A2, type code %B, sha256 da527b95e844a2c0…

46: PHASE BCC_A2 %B 2 1 3 !
47: CONST BCC_A2 : GE MN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

CBCC_A12 (Ge–Mn)

Id: phase:ge-mn:cbcc-a12; status assigned
Structure: alpha-Mn · A12 · cI58 · I-43m (217); type st:a12-alpha-mn-ci58; tier A: standard phase name; confidence high
Stoichiometry: Mn 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–1338.72 K, x(Mn) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ge-mn:cbcc-a12
tdb: tdb:GeMn-14Ber.tdb:CBCC_A12, tdb:GeMn-15Ber.tdb:CBCC_A12

TDB models of CBCC_A12 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: CBCC_A12, type code %, sha256 4243bd74c559c91e…

63: PHASE CBCC_A12 % 2 1 1 !
64: CONST CBCC_A12 : MN : VA : !

GeMn-15Ber.tdb: CBCC_A12, type code %, sha256 da527b95e844a2c0…

61: PHASE CBCC_A12 % 2 1 1 !
62: CONST CBCC_A12 : MN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

CUB_A13 (Ge–Mn)

Id: phase:ge-mn:cub-a13; status assigned
Structure: beta-Mn · A13 · cP20 · P4_132 (213); type st:a13-beta-mn-cp20; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 333.72–1408.72 K, x(Mn) 0.90413–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ge-mn:cub-a13
tdb: tdb:GeMn-14Ber.tdb:CUB_A13, tdb:GeMn-15Ber.tdb:CUB_A13

TDB models of CUB_A13 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: CUB_A13, type code %, sha256 4243bd74c559c91e…

68: PHASE CUB_A13 % 2 1 1 !
69: CONST CUB_A13 : GE MN% : VA : !

GeMn-15Ber.tdb: CUB_A13, type code %, sha256 da527b95e844a2c0…

66: PHASE CUB_A13 % 2 1 1 !
67: CONST CUB_A13 : GE MN% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

FCC_A1 (Ge–Mn)

Id: phase:ge-mn: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): 300–1526 K, x(Mn) 0.87602–1
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:fcc-a1
paper: paper:10.1016/j.intermet.2013.12.009:FCC_A1
tdb: tdb:GeMn-14Ber.tdb:FCC_A1, tdb:GeMn-15Ber.tdb:FCC_A1

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

GeMn-14Ber.tdb: FCC_A1, type code %A, sha256 4243bd74c559c91e…

43: PHASE FCC_A1 %A 2 1 1 !
44: CONST FCC_A1 : GE MN : VA : !

GeMn-15Ber.tdb: FCC_A1, type code %A, sha256 da527b95e844a2c0…

41: PHASE FCC_A1 %A 2 1 1 !
42: CONST FCC_A1 : GE MN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

GE2MN5_HT (Ge–Mn)

Id: phase:ge-mn:ge2mn5-ht; status needs_review
No structure assigned. Why: no_structure_token; off_stoichiometric_model
Candidate (tdb_comment): Ge2Mn5-HT · hP42 · P3c1 — GeMn-14Ber.tdb: 'Prototype Ge2Mn5-HT (hP42, P3c1)'
Candidate (tdb_comment): Ge2Mn5-HT · hP42 · P3c1 — GeMn-15Ber.tdb: 'Prototype Ge2Mn5-HT (hP42, P3c1)'
Stability: stable in 2 of 2 calculated diagram(s): 906.7–1230 K, x(Mn) 0.71065–0.74
Literature: 18 values (18 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:ge2mn5-ht
paper: paper:10.1016/j.intermet.2013.12.009:Mn5Ge2
tdb: tdb:GeMn-14Ber.tdb:GE2MN5_HT, tdb:GeMn-15Ber.tdb:GE2MN5_HT

TDB models of GE2MN5_HT (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GE2MN5_HT, type code %, sha256 4243bd74c559c91e…

93: PHASE GE2MN5_HT % 2 5 2 !
94: CONST GE2MN5_HT : GE MN% : GE% MN : !

GeMn-15Ber.tdb: GE2MN5_HT, type code %, sha256 da527b95e844a2c0…

91: PHASE GE2MN5_HT % 2 5 2 !
92: CONST GE2MN5_HT : GE MN% : GE% MN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase
doi:10.1016/0022-5088(70)90030-5 S.K. Gupta, K.P. Gupta, Phase equilibria in the Manganese-Germanium system in the composition range 20–35 at.% Germanium, Journal of the Less Common Metals 20, 1-6 (1970).
cited as the source of values for this phase

GE2MN5_LT (Ge–Mn)

Id: phase:ge-mn:ge2mn5-lt; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token
Candidate (tdb_comment): Ga2Mg5 · oI28 · Ibam — GeMn-14Ber.tdb: 'Prototype Ga2Mg5 (oI28, Ibam)'
Candidate (tdb_comment): Ga2Mg5 · oI28 · Ibam — GeMn-15Ber.tdb: 'Prototype Ga2Mg5 (oI28, Ibam)'
Stoichiometry: Ge 0.2857, Mn 0.7143
Stability: stable in 2 of 2 calculated diagram(s): 300–970 K, x(Mn) 0.71429–0.71429
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:ge2mn5-lt
paper: paper:10.1016/j.intermet.2013.12.009:LT_Mn5Ge2
tdb: tdb:GeMn-14Ber.tdb:GE2MN5_LT, tdb:GeMn-15Ber.tdb:GE2MN5_LT

TDB models of GE2MN5_LT (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GE2MN5_LT, type code %, sha256 4243bd74c559c91e…

88: PHASE GE2MN5_LT % 2 5 2 !
89: CONST GE2MN5_LT : MN : GE : !

GeMn-15Ber.tdb: GE2MN5_LT, type code %, sha256 da527b95e844a2c0…

86: PHASE GE2MN5_LT % 2 5 2 !
87: CONST GE2MN5_LT : MN : GE : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

GE3MN5_D88 (Ge–Mn)

Id: phase:ge-mn:ge3mn5-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: Ge 0.3750, Mn 0.6250
Stability: stable in 2 of 2 calculated diagram(s): 300–1234.65 K, x(Mn) 0.625–0.625
Literature: 13 values (13 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:ge3mn5-d88
paper: paper:10.1016/j.intermet.2013.12.009:Mn5Ge3
tdb: tdb:GeMn-14Ber.tdb:GE3MN5_D88, tdb:GeMn-15Ber.tdb:GE3MN5_D88

TDB models of GE3MN5_D88 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GE3MN5_D88, type code %, sha256 4243bd74c559c91e…

78: PHASE GE3MN5_D88 % 2 5 3 !
79: CONST GE3MN5_D88 : MN : GE : !

GeMn-15Ber.tdb: GE3MN5_D88, type code %, sha256 da527b95e844a2c0…

76: PHASE GE3MN5_D88 % 2 5 3 !
77: CONST GE3MN5_D88 : MN : GE : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

GE8MN11 (Ge–Mn)

Id: phase:ge-mn:ge8mn11; status assigned
Structure: Cr11Ge8 · oP76 · Pnma (62); type st:cr11ge8-op76; 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 (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ge 0.4211, Mn 0.5789
Stability: stable in 2 of 2 calculated diagram(s): 300–1069.9 K, x(Mn) 0.57895–0.57895
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:ge8mn11
paper: paper:10.1016/j.intermet.2013.12.009:Mn11Ge8
tdb: tdb:GeMn-14Ber.tdb:GE8MN11, tdb:GeMn-15Ber.tdb:GE8MN11

TDB models of GE8MN11 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GE8MN11, type code %, sha256 4243bd74c559c91e…

73: PHASE GE8MN11 % 2 11 8 !
74: CONST GE8MN11 : MN : GE : !

GeMn-15Ber.tdb: GE8MN11, type code %, sha256 da527b95e844a2c0…

71: PHASE GE8MN11 % 2 11 8 !
72: CONST GE8MN11 : MN : GE : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase
doi:10.1021/ja01152a518 James H. Downing, Daniel Cubicciotti, On the Freezing Point Diagram of the Germanium—Manganese System, J. Am. Chem. Soc. 73, 4025-4025 (1951).
cited as the source of values for this phase

GEMN2_B82 (Ge–Mn)

Id: phase:ge-mn:gemn2-b82; status assigned
Structure: InNi2 · B8_2 · hP6 · P6_3/mmc (194); type st:b8-2-inni2-hp6; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in GeMn-14Ber.tdb also describes the disordered state
Caveat: partitioned order/disorder model in GeMn-15Ber.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 1073.74–1232 K, x(Mn) 0.66144–0.67427
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:gemn2-b82
paper: paper:10.1016/j.intermet.2013.12.009:Mn2Ge
tdb: tdb:GeMn-14Ber.tdb:GEMN2_B82, tdb:GeMn-15Ber.tdb:GEMN2_B82

TDB models of GEMN2_B82 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GEMN2_B82, type code %, sha256 4243bd74c559c91e…

83: PHASE GEMN2_B82 % 2 2 1 !
84: CONST GEMN2_B82 : GE MN% : GE% MN : !

GeMn-15Ber.tdb: GEMN2_B82, type code %, sha256 da527b95e844a2c0…

81: PHASE GEMN2_B82 % 2 2 1 !
82: CONST GEMN2_B82 : GE MN% : GE% MN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase
doi:10.1016/0022-5088(70)90030-5 S.K. Gupta, K.P. Gupta, Phase equilibria in the Manganese-Germanium system in the composition range 20–35 at.% Germanium, Journal of the Less Common Metals 20, 1-6 (1970).
cited as the source of values for this phase

GEMN3_D019 (Ge–Mn)

Id: phase:ge-mn:gemn3-d019; status assigned
Structure: Ni3Sn · D0_19 · hP8 · P6_3/mmc (194); type st:d0-19-ni3sn-hp8; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 948–1195.44 K, x(Mn) 0.75534–0.78303
Literature: 12 values (12 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:gemn3-d019
paper: paper:10.1016/j.intermet.2013.12.009:Mn3Ge
tdb: tdb:GeMn-14Ber.tdb:GEMN3_D019, tdb:GeMn-15Ber.tdb:GEMN3_D019

TDB models of GEMN3_D019 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GEMN3_D019, type code %, sha256 4243bd74c559c91e…

104: PHASE GEMN3_D019 % 2 3 1 !
105: CONST GEMN3_D019 : MN : GE% MN : !

GeMn-15Ber.tdb: GEMN3_D019, type code %, sha256 da527b95e844a2c0…

102: PHASE GEMN3_D019 % 2 3 1 !
103: CONST GEMN3_D019 : MN : GE% MN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase
doi:10.1016/0022-5088(70)90030-5 S.K. Gupta, K.P. Gupta, Phase equilibria in the Manganese-Germanium system in the composition range 20–35 at.% Germanium, Journal of the Less Common Metals 20, 1-6 (1970).
cited as the source of values for this phase

GEMN3_D022 (Ge–Mn)

Id: phase:ge-mn:gemn3-d022; status needs_review
No structure assigned. Why: name_suggests_D0_22_but_dft_space_group_225
Candidate (dft_mp): Fm-3m (225) — on-hull MP Mn3Ge at x(MN)=0.7500
Candidate (dft_oqmd): Fm-3m (225) — on-hull OQMD Ge1 Mn3 at x(MN)=0.7500
Candidate (name_token): Al3Ti · D0_22 · tI8 · I4/mmm (139) — Strukturbericht/word 'D022' in the TDB name
Candidate (sgte_mmc2): Al3Ti · D0_22 · tI8 · I4/mmm (139) — Hallstedt 2025 mmc2 row for GEMN3_D022: GeMn3-LT
Candidate (tdb_comment): Al3Ti · tI8 · I4/mmm — GeMn-14Ber.tdb: 'Prototype Al3Ti (tI8, I4/mmm) LT'
Candidate (tdb_comment): Al3Ti · tI8 · I4/mmm — GeMn-15Ber.tdb: 'Prototype Al3Ti (tI8, I4/mmm) LT'
Stoichiometry: Ge 0.2500, Mn 0.7500
Stability: stable in 2 of 2 calculated diagram(s): 300–1052.56 K, x(Mn) 0.75–0.75
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:gemn3-d022
paper: paper:10.1016/j.intermet.2013.12.009:LT_Mn3Ge
tdb: tdb:GeMn-14Ber.tdb:GEMN3_D022, tdb:GeMn-15Ber.tdb:GEMN3_D022

TDB models of GEMN3_D022 (2): PHASE and CONSTITUENT statements as written

GeMn-14Ber.tdb: GEMN3_D022, type code %, sha256 4243bd74c559c91e…

99: PHASE GEMN3_D022 % 2 3 1 !
100: CONST GEMN3_D022 : MN : GE : !

GeMn-15Ber.tdb: GEMN3_D022, type code %, sha256 da527b95e844a2c0…

97: PHASE GEMN3_D022 % 2 3 1 !
98: CONST GEMN3_D022 : MN : GE : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

HCP_A3 (Ge–Mn)

Id: phase:ge-mn: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: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ge-mn:hcp-a3
tdb: tdb:GeMn-14Ber.tdb:HCP_A3, tdb:GeMn-15Ber.tdb:HCP_A3

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

GeMn-14Ber.tdb: HCP_A3, type code %, sha256 4243bd74c559c91e…

53: PHASE HCP_A3 % 2 1 0.5 !
54: CONST HCP_A3 : GE MN : VA : !

GeMn-15Ber.tdb: HCP_A3, type code %, sha256 da527b95e844a2c0…

51: PHASE HCP_A3 % 2 1 0.5 !
52: CONST HCP_A3 : GE MN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase

LIQUID (Ge–Mn)

Id: phase:ge-mn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 995.12–2500 K, x(Mn) 0–1
Literature: 35 values (35 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ge-mn:liquid
paper: paper:10.1016/j.intermet.2013.12.009:Liquid
tdb: tdb:GeMn-14Ber.tdb:LIQUID, tdb:GeMn-15Ber.tdb:LIQUID

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

GeMn-14Ber.tdb: LIQUID, type code %, sha256 4243bd74c559c91e…

38: PHASE LIQUID:L % 1 1 !
39: CONST LIQUID:L : GE GE3MN5_F MN : !

GeMn-15Ber.tdb: LIQUID, type code %, sha256 da527b95e844a2c0…

36: PHASE LIQUID:L % 1 1 !
37: CONST LIQUID:L : GE GE3MN5_F MN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2013.12.009 A. Berche, J.C. Tedenac, P. Jund, Thermodynamic modeling of the germanium–manganese system, Intermetallics 47, 23-30 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.01.072 Alexandre Berche, Elodie Théron-Ruiz, Jean-Claude Tédenac, Philippe Jund, Thermodynamic study of the Ge–Mn–Si system, Journal of Alloys and Compounds 632, 10-16 (2015).
assessment that models this phase
doi:10.1016/0022-5088(70)90030-5 S.K. Gupta, K.P. Gupta, Phase equilibria in the Manganese-Germanium system in the composition range 20–35 at.% Germanium, Journal of the Less Common Metals 20, 1-6 (1970).
cited as the source of values for this phase
doi:10.1021/ja01152a518 James H. Downing, Daniel Cubicciotti, On the Freezing Point Diagram of the Germanium—Manganese System, J. Am. Chem. Soc. 73, 4025-4025 (1951).
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}
}