Co–La phases

12 phases (tier A 7, tier C 1, liquid 1, needs_review 3); 12 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 · Co–La system page · Markdown · field reference

Phases of the Co–La system (12)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
BCC_A2
phase:co-la:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 1133.89–2499 K, x(La) 0.99997–102
CO13LA_D23
phase:co-la:co13la-d23
NaZn13 · D2_3 · cF112 · Fm-3c (226)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–1458.19 K, x(La) 0.07143–0.0714362
CO19LA5
phase:co-la:co19la5
needs_reviewstable in 2 of 2 calculated diagram(s): 300–1141.6 K, x(La) 0.20833–0.2083352
CO23LA27
phase:co-la:co23la27
needs_reviewstable in 2 of 2 calculated diagram(s): 300–843.3 K, x(La) 0.54–0.5462
CO3LA2
phase:co-la:co3la2
La2Ni3 · oC20 · Cmce (64)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 2 of 2 calculated diagram(s): 300–968.46 K, x(La) 0.4–0.462
CO5LA_D2D
phase:co-la:co5la-d2d
CaCu5 · D2_d · hP6 · P6/mmm (191)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–1364.81 K, x(La) 0.16667–0.1666752
CO7LA2
phase:co-la:co7la2
needs_reviewstable in 2 of 2 calculated diagram(s): 300–1117.2 K, x(La) 0.22222–0.2222262
COLA3_D011
phase:co-la:cola3-d011
Fe3C · D0_11 · oP16 · Pnma (62)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–816.02 K, x(La) 0.75–0.7592
DHCP
phase:co-la:dhcp-a3
alpha-La · A3' · hP4 · P6_3/mmc (194)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–1125 K, x(La) 1–102
FCC_A1
phase:co-la:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 539.99–2499.83 K, x(La) 0–162
HCP_A3
phase:co-la:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namestable in 2 of 2 calculated diagram(s): 300–694.99 K, x(La) 0–002
LIQUID
phase:co-la:liquid
liquidliquidstable in 2 of 2 calculated diagram(s): 792.85–2500 K, x(La) 0–1262

BCC_A2 (Co–La)

Names (3): corpus: corpus:phase:co-la:bcc-a2
tdb: tdb:CoLa-08Wan.tdb:BCC_A2, tdb:CoLa-24Liu.tdb:BCC_A2

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

CoLa-08Wan.tdb: BCC_A2, type code %B, sha256 0b3d3f1eb4712d81…

31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : CO LA% : VA : !

CoLa-24Liu.tdb: BCC_A2, type code %B, sha256 1f229b6d94fecc03…

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

Example references (2 of 2; assessments first):

CO13LA_D23 (Co–La)

Names (4): corpus: corpus:phase:co-la:co13la-d23
paper: paper:10.1016/j.jallcom.2006.11.155:Co13La
tdb: tdb:CoLa-08Wan.tdb:CO13LA_D23, tdb:CoLa-24Liu.tdb:CO13LA_D23

TDB models of CO13LA_D23 (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: CO13LA_D23, type code %A, sha256 0b3d3f1eb4712d81…

46: PHASE CO13LA_D23 %A 2 13 1 !
47: CONST CO13LA_D23 : CO : LA : !

CoLa-24Liu.tdb: CO13LA_D23, type code %A, sha256 1f229b6d94fecc03…

50: PHASE CO13LA_D23 %A 2 13 1 !
51: CONST CO13LA_D23 : CO : LA : !

Example references (2 of 2; assessments first):

CO19LA5 (Co–La)

Names (4): corpus: corpus:phase:co-la:co19la5
paper: paper:10.1016/j.jallcom.2006.11.155:Co19La5
tdb: tdb:CoLa-08Wan.tdb:CO19LA5, tdb:CoLa-24Liu.tdb:CO19LA5

TDB models of CO19LA5 (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: CO19LA5, type code %A, sha256 0b3d3f1eb4712d81…

56: PHASE CO19LA5 %A 2 19 5 !
57: CONST CO19LA5 : CO : LA : !

CoLa-24Liu.tdb: CO19LA5, type code %A, sha256 1f229b6d94fecc03…

60: PHASE CO19LA5 %A 2 19 5 !
61: CONST CO19LA5 : CO : LA : !

Example references (2 of 2; assessments first):

CO23LA27 (Co–La)

Names (4): corpus: corpus:phase:co-la:co23la27
paper: paper:10.1016/j.jallcom.2006.11.155:Co23La27
tdb: tdb:CoLa-08Wan.tdb:CO23LA27, tdb:CoLa-24Liu.tdb:CO23LA27

TDB models of CO23LA27 (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: CO23LA27, type code %, sha256 0b3d3f1eb4712d81…

72: PHASE CO23LA27 % 2 23 27 !
73: CONST CO23LA27 : CO : LA : !

CoLa-24Liu.tdb: CO23LA27, type code %, sha256 1f229b6d94fecc03…

76: PHASE CO23LA27 % 2 23 27 !
77: CONST CO23LA27 : CO : LA : !

Example references (2 of 2; assessments first):

CO3LA2 (Co–La)

Names (4): corpus: corpus:phase:co-la:co3la2
paper: paper:10.1016/j.jallcom.2006.11.155:Co3La2
tdb: tdb:CoLa-08Wan.tdb:CO3LA2, tdb:CoLa-24Liu.tdb:CO3LA2

TDB models of CO3LA2 (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: CO3LA2, type code %, sha256 0b3d3f1eb4712d81…

67: PHASE CO3LA2 % 2 3 2 !
68: CONST CO3LA2 : CO : LA : !

CoLa-24Liu.tdb: CO3LA2, type code %, sha256 1f229b6d94fecc03…

71: PHASE CO3LA2 % 2 3 2 !
72: CONST CO3LA2 : CO : LA : !

Example references (2 of 2; assessments first):

CO5LA_D2D (Co–La)

Names (4): corpus: corpus:phase:co-la:co5la-d2d
paper: paper:10.1016/j.jallcom.2006.11.155:Co5La
tdb: tdb:CoLa-08Wan.tdb:CO5LA_D2D, tdb:CoLa-24Liu.tdb:CO5LA_D2D

TDB models of CO5LA_D2D (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: CO5LA_D2D, type code %A, sha256 0b3d3f1eb4712d81…

51: PHASE CO5LA_D2D %A 2 5 1 !
52: CONST CO5LA_D2D : CO : LA : !

CoLa-24Liu.tdb: CO5LA_D2D, type code %A, sha256 1f229b6d94fecc03…

55: PHASE CO5LA_D2D %A 2 5 1 !
56: CONST CO5LA_D2D : CO : LA : !

Example references (2 of 2; assessments first):

CO7LA2 (Co–La)

Names (4): corpus: corpus:phase:co-la:co7la2
paper: paper:10.1016/j.jallcom.2006.11.155:Co7La2
tdb: tdb:CoLa-08Wan.tdb:CO7LA2, tdb:CoLa-24Liu.tdb:CO7LA2

TDB models of CO7LA2 (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: CO7LA2, type code %A, sha256 0b3d3f1eb4712d81…

62: PHASE CO7LA2 %A 2 7 2 !
63: CONST CO7LA2 : CO : LA : !

CoLa-24Liu.tdb: CO7LA2, type code %A, sha256 1f229b6d94fecc03…

66: PHASE CO7LA2 %A 2 7 2 !
67: CONST CO7LA2 : CO : LA : !

Example references (2 of 2; assessments first):

COLA3_D011 (Co–La)

Names (6): corpus: corpus:phase:co-la:cola3-d011
mp: mp:mp-aaabkkxb
oqmd: oqmd:oqmd-19328
paper: paper:10.1016/j.jallcom.2006.11.155:CoLa3
tdb: tdb:CoLa-08Wan.tdb:COLA3_D011, tdb:CoLa-24Liu.tdb:COLA3_D011

TDB models of COLA3_D011 (2): PHASE and CONSTITUENT statements as written

CoLa-08Wan.tdb: COLA3_D011, type code %, sha256 0b3d3f1eb4712d81…

77: PHASE COLA3_D011 % 2 1 3 !
78: CONST COLA3_D011 : CO : LA : !

CoLa-24Liu.tdb: COLA3_D011, type code %, sha256 1f229b6d94fecc03…

81: PHASE COLA3_D011 % 2 1 3 !
82: CONST COLA3_D011 : CO : LA : !

Example references (2 of 2; assessments first):

DHCP (Co–La)

Names (3): corpus: corpus:phase:co-la:dhcp-a3
tdb: tdb:CoLa-08Wan.tdb:DHCP, tdb:CoLa-24Liu.tdb:DHCP

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

CoLa-08Wan.tdb: DHCP, type code %, sha256 0b3d3f1eb4712d81…

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

CoLa-24Liu.tdb: DHCP, type code %, sha256 1f229b6d94fecc03…

45: PHASE DHCP % 1 1 !
46: CONST DHCP : LA : !

Example references (2 of 2; assessments first):

FCC_A1 (Co–La)

Names (5): corpus: corpus:phase:co-la:fcc-a1
paper: paper:10.1016/j.jallcom.2006.11.155:fcc (Co), paper:10.1016/j.jallcom.2006.11.155:fcc (La)
tdb: tdb:CoLa-08Wan.tdb:FCC_A1, tdb:CoLa-24Liu.tdb:FCC_A1

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

CoLa-08Wan.tdb: FCC_A1, type code %A, sha256 0b3d3f1eb4712d81…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : CO% LA% : VA : !

CoLa-24Liu.tdb: FCC_A1, type code %A, sha256 1f229b6d94fecc03…

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

Example references (2 of 2; assessments first):

HCP_A3 (Co–La)

Names (3): corpus: corpus:phase:co-la:hcp-a3
tdb: tdb:CoLa-08Wan.tdb:HCP_A3, tdb:CoLa-24Liu.tdb:HCP_A3

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

CoLa-08Wan.tdb: HCP_A3, type code %A, sha256 0b3d3f1eb4712d81…

36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : CO : VA : !

CoLa-24Liu.tdb: HCP_A3, type code %A, sha256 1f229b6d94fecc03…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : CO% LA : VA : !

Example references (2 of 2; assessments first):

LIQUID (Co–La)

Names (4): corpus: corpus:phase:co-la:liquid
paper: paper:10.1016/j.jallcom.2006.11.155:L
tdb: tdb:CoLa-08Wan.tdb:LIQUID, tdb:CoLa-24Liu.tdb:LIQUID

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

CoLa-08Wan.tdb: LIQUID, type code %, sha256 0b3d3f1eb4712d81…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : CO LA : !

CoLa-24Liu.tdb: LIQUID, type code %, sha256 1f229b6d94fecc03…

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

Example references (2 of 2; assessments first):