La–Mn phases

7 phases (tier A 6, liquid 1); 6 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–Mn system page · Markdown · field reference

Phases of the La–Mn system (7)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:la-mn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1030–2499.42 K, x(Mn) 0–1	7	2
CBCC_A12 phase:la-mn:cbcc-a12	alpha-Mn · A12 · cI58 · I-43m (217)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1030.25 K, x(Mn) 0.23–1	10	2
CUB_A13 phase:la-mn:cub-a13	beta-Mn · A13 · cP20 · P4_132 (213)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300.25–1404.99 K, x(Mn) 0.2–1	9	2
DHCP phase:la-mn:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1130 K, x(Mn) 0–0	0	2
FCC_A1 phase:la-mn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 550–1426.01 K, x(Mn) 0–1	16	2
HCP_A3 phase:la-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:la-mn:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 972.01–2500 K, x(Mn) 0–1	24	2

BCC_A2 (La–Mn)

Id: phase:la-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): 1030–2499.42 K, x(Mn) 0–1
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:la-mn:bcc-a2
paper: paper:10.2298/jmmb120717049w:(γLa), paper:10.2298/jmmb120717049w:(δMn), paper:10.4028/www.scientific.net/msf.850.21:γ-La, paper:10.4028/www.scientific.net/msf.850.21:δ-Mn
tdb: tdb:LaMn-12Wan.tdb:BCC_A2, tdb:LaMn-16Zhu.tdb:BCC_A2

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

LaMn-12Wan.tdb: BCC_A2, type code %B, sha256 7161f70fb98ae052…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : LA% MN% : VA : !

LaMn-16Zhu.tdb: BCC_A2, type code %B, sha256 222466a058a17a94…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : LA% MN% : VA : !

Example references (2 of 2; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase; reports values for this phase
doi:10.4028/www.scientific.net/msf.850.21 Chao Fan Zhu, Shi Dong Lin, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou, Thermodynamic Re-Assessment of the Mn-La Binary System, MSF 850, 21-26 (2016).
reports values for this phase

CBCC_A12 (La–Mn)

Id: phase:la-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
Stability: stable in 2 of 2 calculated diagram(s): 300–1030.25 K, x(Mn) 0.23–1
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:la-mn:cbcc-a12
paper: paper:10.2298/jmmb120717049w:(αMn), paper:10.4028/www.scientific.net/msf.850.21:α-Mn
tdb: tdb:LaMn-12Wan.tdb:CBCC_A12, tdb:LaMn-16Zhu.tdb:CBCC_A12

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

LaMn-12Wan.tdb: CBCC_A12, type code %A, sha256 7161f70fb98ae052…

45: PHASE CBCC_A12 %A 2 1 1 !
46: CONST CBCC_A12 : MN : VA : !

LaMn-16Zhu.tdb: CBCC_A12, type code %A, sha256 222466a058a17a94…

48: PHASE CBCC_A12 %A 2 1 1 !
49: CONST CBCC_A12 : LA MN% : VA : !

Example references (4 of 4; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase; reports values for this phase
doi:10.4028/www.scientific.net/msf.850.21 Chao Fan Zhu, Shi Dong Lin, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou, Thermodynamic Re-Assessment of the Mn-La Binary System, MSF 850, 21-26 (2016).
reports values for this phase
doi:10.1002/cber.19420751293 L. Rolla, A. Iandelli, Ber. Deut. Chem. Ges. 75 (1942) 2091-2095.
cited as the source of values for this phase
doi:10.1007/bf02868307 H. W. King, Crystal structures of the elements at 25°C, Bulletin of Alloy Phase Diagrams 2, 401-402 (1981).
cited as the source of values for this phase

CUB_A13 (La–Mn)

Id: phase:la-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): 300.25–1404.99 K, x(Mn) 0.2–1
Literature: 9 values (9 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:la-mn:cub-a13
paper: paper:10.2298/jmmb120717049w:(βMn), paper:10.4028/www.scientific.net/msf.850.21:β-Mn
tdb: tdb:LaMn-12Wan.tdb:CUB_A13, tdb:LaMn-16Zhu.tdb:CUB_A13

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

LaMn-12Wan.tdb: CUB_A13, type code %, sha256 7161f70fb98ae052…

50: PHASE CUB_A13 % 2 1 1 !
51: CONST CUB_A13 : MN : VA : !

LaMn-16Zhu.tdb: CUB_A13, type code %, sha256 222466a058a17a94…

53: PHASE CUB_A13 % 2 1 1 !
54: CONST CUB_A13 : LA MN% : VA : !

Example references (3 of 3; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase; reports values for this phase
doi:10.4028/www.scientific.net/msf.850.21 Chao Fan Zhu, Shi Dong Lin, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou, Thermodynamic Re-Assessment of the Mn-La Binary System, MSF 850, 21-26 (2016).
reports values for this phase
doi:10.1007/bf02868307 H. W. King, Crystal structures of the elements at 25°C, Bulletin of Alloy Phase Diagrams 2, 401-402 (1981).
cited as the source of values for this phase

DHCP (La–Mn)

Id: phase:la-mn: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
Stoichiometry: La 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–1130 K, x(Mn) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:la-mn:dhcp-a3, corpus:phase:la-mn:dhcp
tdb: tdb:LaMn-12Wan.tdb:DHCP, tdb:LaMn-16Zhu.tdb:DHCP

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

LaMn-12Wan.tdb: DHCP, type code %, sha256 7161f70fb98ae052…

40: PHASE DHCP % 1 1 !
41: CONST DHCP : LA : !

LaMn-16Zhu.tdb: DHCP, type code %, sha256 222466a058a17a94…

43: PHASE DHCP % 1 1 !
44: CONST DHCP : LA : !

Example references (1 of 1; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase

FCC_A1 (La–Mn)

Id: phase:la-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): 550–1426.01 K, x(Mn) 0–1
Literature: 16 values (16 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:la-mn:fcc-a1
paper: paper:10.2298/jmmb120717049w:(βLa), paper:10.2298/jmmb120717049w:(γMn), paper:10.4028/www.scientific.net/msf.850.21:β-La, paper:10.4028/www.scientific.net/msf.850.21:γ-Mn
tdb: tdb:LaMn-12Wan.tdb:FCC_A1, tdb:LaMn-16Zhu.tdb:FCC_A1

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

LaMn-12Wan.tdb: FCC_A1, type code %A, sha256 7161f70fb98ae052…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : LA% MN% : VA : !

LaMn-16Zhu.tdb: FCC_A1, type code %A, sha256 222466a058a17a94…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : LA% MN% : VA : !

Example references (3 of 3; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase; reports values for this phase
doi:10.4028/www.scientific.net/msf.850.21 Chao Fan Zhu, Shi Dong Lin, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou, Thermodynamic Re-Assessment of the Mn-La Binary System, MSF 850, 21-26 (2016).
reports values for this phase
doi:10.1002/cber.19420751293 L. Rolla, A. Iandelli, Ber. Deut. Chem. Ges. 75 (1942) 2091-2095.
cited as the source of values for this phase

HCP_A3 (La–Mn)

Id: phase:la-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
Stoichiometry: Mn 1.0000
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:la-mn:hcp-a3
tdb: tdb:LaMn-12Wan.tdb:HCP_A3, tdb:LaMn-16Zhu.tdb:HCP_A3

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

LaMn-12Wan.tdb: HCP_A3, type code %A, sha256 7161f70fb98ae052…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : MN : VA : !

LaMn-16Zhu.tdb: HCP_A3, type code %A, sha256 222466a058a17a94…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : MN : VA : !

Example references (1 of 1; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase

LIQUID (La–Mn)

Id: phase:la-mn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 972.01–2500 K, x(Mn) 0–1
Literature: 24 values (24 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:la-mn:liquid
paper: paper:10.2298/jmmb120717049w:Liquid, paper:10.4028/www.scientific.net/msf.850.21:L, paper:10.4028/www.scientific.net/msf.850.21:liquid
tdb: tdb:LaMn-12Wan.tdb:LIQUID, tdb:LaMn-16Zhu.tdb:LIQUID

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

LaMn-12Wan.tdb: LIQUID, type code %, sha256 7161f70fb98ae052…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : LA MN : !

LaMn-16Zhu.tdb: LIQUID, type code %, sha256 222466a058a17a94…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : LA MN : !

Example references (4 of 4; assessments first):

doi:10.2298/JMMB120717049W Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012).
assessment that models this phase; reports values for this phase
doi:10.4028/www.scientific.net/msf.850.21 Chao Fan Zhu, Shi Dong Lin, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou, Thermodynamic Re-Assessment of the Mn-La Binary System, MSF 850, 21-26 (2016).
reports values for this phase
doi:10.1002/cber.19420751293 L. Rolla, A. Iandelli, Ber. Deut. Chem. Ges. 75 (1942) 2091-2095.
cited as the source of values for this phase
doi:10.1007/bf02868307 H. W. King, Crystal structures of the elements at 25°C, Bulletin of Alloy Phase Diagrams 2, 401-402 (1981).
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}
}