In–Se phases

15 phases (tier A 6, tier C 3, liquid 1, needs_review 5); 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 · In–Se system page · Markdown · field reference

Phases of the In–Se system (15)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
TETRAGONAL_A6
phase:in-se:a6-tetragonal
In · A6 · tI2 · I4/mmm (139)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–429.75 K, x(Se) 0–001
HEXAGONAL_A8
phase:in-se:a8-hexagonal
gamma-Se · A8 · hP3 · P3_121 (152)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–494 K, x(Se) 1–101
BCC_A2
phase:in-se:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namenot stable in 1 calculated diagram(s)01
FCC_A1
phase:in-se:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namenot stable in 1 calculated diagram(s)01
HCP_A3
phase:in-se:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namenot stable in 1 calculated diagram(s)01
IN2SE3_BETA
phase:in-se:in2se3-beta
needs_reviewstable in 1 of 1 calculated diagram(s): 471.54–1152.24 K, x(Se) 0.596–0.59601
IN2SE3_C33
phase:in-se:in2se3-c33
Bi2Te3 · C33 · hR5 · R-3m (166)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–473.98 K, x(Se) 0.6–0.601
IN2SE3_DELTA
phase:in-se:in2se3-delta
needs_reviewstable in 1 of 1 calculated diagram(s): 1017.96–1160 K, x(Se) 0.6–0.601
IN2SE3_GAMMA
phase:in-se:in2se3-gamma
needs_reviewstable in 1 of 1 calculated diagram(s): 473.98–1017.96 K, x(Se) 0.6–0.601
IN4SE3
phase:in-se:in4se3
In4Se3 · oP28 · Pnnm (58)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–821.98 K, x(Se) 0.42857–0.4285701
IN5SE7
phase:in-se:in5se7
needs_reviewstable in 1 of 1 calculated diagram(s): 300–944.25 K, x(Se) 0.58333–0.5833301
IN6SE7
phase:in-se:in6se7
In6S7 · mP26 · P2_1/m (11)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–924.07 K, x(Se) 0.53846–0.5384601
IN9SE11
phase:in-se:in9se11
needs_reviewstable in 1 of 1 calculated diagram(s): 300–934.68 K, x(Se) 0.55–0.5501
INSE
phase:in-se:inse
GaSe · hR4 · R3m (160)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–883.21 K, x(Se) 0.5–0.501
LIQUID
phase:in-se:liquid
liquidliquidstable in 1 of 1 calculated diagram(s): 429.75–2500 K, x(Se) 0–101

TETRAGONAL_A6 (In–Se)

Names (2): corpus: corpus:phase:in-se:a6-tetragonal
tdb: tdb:InSe-03Li.tdb:TETRAGONAL_A6

TDB models of TETRAGONAL_A6 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: TETRAGONAL_A6, type code %, sha256 c0a793081ee0b619…

44: PHASE TETRAGONAL_A6 % 1 1 !
45: CONST TETRAGONAL_A6 : IN : !

Example references (1 of 1; assessments first):

HEXAGONAL_A8 (In–Se)

Names (2): corpus: corpus:phase:in-se:a8-hexagonal
tdb: tdb:InSe-03Li.tdb:HEXAGONAL_A8

TDB models of HEXAGONAL_A8 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: HEXAGONAL_A8, type code %, sha256 c0a793081ee0b619…

49: PHASE HEXAGONAL_A8 % 1 1 !
50: CONST HEXAGONAL_A8 : SE : !

Example references (1 of 1; assessments first):

BCC_A2 (In–Se)

Names (2): corpus: corpus:phase:in-se:bcc-a2
tdb: tdb:InSe-03Li.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: BCC_A2, type code %B, sha256 c0a793081ee0b619…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : IN : VA : !

Example references (1 of 1; assessments first):

FCC_A1 (In–Se)

Names (2): corpus: corpus:phase:in-se:fcc-a1
tdb: tdb:InSe-03Li.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: FCC_A1, type code %A, sha256 c0a793081ee0b619…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : IN : VA : !

Example references (1 of 1; assessments first):

HCP_A3 (In–Se)

Names (2): corpus: corpus:phase:in-se:hcp-a3
tdb: tdb:InSe-03Li.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: HCP_A3, type code %A, sha256 c0a793081ee0b619…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : IN : VA: !

Example references (1 of 1; assessments first):

IN2SE3_BETA (In–Se)

Names (2): corpus: corpus:phase:in-se:in2se3-beta
tdb: tdb:InSe-03Li.tdb:IN2SE3_BETA

TDB models of IN2SE3_BETA (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN2SE3_BETA, type code %, sha256 c0a793081ee0b619…

84: PHASE IN2SE3_BETA % 2 2.02 2.98 !
85: CONST IN2SE3_BETA : IN : SE : !

Example references (1 of 1; assessments first):

IN2SE3_C33 (In–Se)

Names (2): corpus: corpus:phase:in-se:in2se3-c33
tdb: tdb:InSe-03Li.tdb:IN2SE3_C33

TDB models of IN2SE3_C33 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN2SE3_C33, type code %, sha256 c0a793081ee0b619…

79: PHASE IN2SE3_C33 % 2 2 3 !
80: CONST IN2SE3_C33 : IN : SE : !

Example references (1 of 1; assessments first):

IN2SE3_DELTA (In–Se)

Names (2): corpus: corpus:phase:in-se:in2se3-delta
tdb: tdb:InSe-03Li.tdb:IN2SE3_DELTA

TDB models of IN2SE3_DELTA (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN2SE3_DELTA, type code %, sha256 c0a793081ee0b619…

94: PHASE IN2SE3_DELTA % 2 2 3 !
95: CONST IN2SE3_DELTA : IN : SE : !

Example references (1 of 1; assessments first):

IN2SE3_GAMMA (In–Se)

Names (2): corpus: corpus:phase:in-se:in2se3-gamma
tdb: tdb:InSe-03Li.tdb:IN2SE3_GAMMA

TDB models of IN2SE3_GAMMA (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN2SE3_GAMMA, type code %, sha256 c0a793081ee0b619…

89: PHASE IN2SE3_GAMMA % 2 2 3 !
90: CONST IN2SE3_GAMMA : IN : SE : !

Example references (1 of 1; assessments first):

IN4SE3 (In–Se)

Names (2): corpus: corpus:phase:in-se:in4se3
tdb: tdb:InSe-03Li.tdb:IN4SE3

TDB models of IN4SE3 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN4SE3, type code %, sha256 c0a793081ee0b619…

54: PHASE IN4SE3 % 2 4 3 !
55: CONST IN4SE3 : IN : SE : !

Example references (1 of 1; assessments first):

IN5SE7 (In–Se)

Names (2): corpus: corpus:phase:in-se:in5se7
tdb: tdb:InSe-03Li.tdb:IN5SE7

TDB models of IN5SE7 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN5SE7, type code %, sha256 c0a793081ee0b619…

74: PHASE IN5SE7 % 2 5 7 !
75: CONST IN5SE7 : IN : SE : !

Example references (1 of 1; assessments first):

IN6SE7 (In–Se)

Names (2): corpus: corpus:phase:in-se:in6se7
tdb: tdb:InSe-03Li.tdb:IN6SE7

TDB models of IN6SE7 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN6SE7, type code %, sha256 c0a793081ee0b619…

64: PHASE IN6SE7 % 2 6 7 !
65: CONST IN6SE7 : IN : SE : !

Example references (1 of 1; assessments first):

IN9SE11 (In–Se)

Names (2): corpus: corpus:phase:in-se:in9se11
tdb: tdb:InSe-03Li.tdb:IN9SE11

TDB models of IN9SE11 (1): PHASE and CONSTITUENT statements as written

InSe-03Li.tdb: IN9SE11, type code %, sha256 c0a793081ee0b619…

69: PHASE IN9SE11 % 2 9 11 !
70: CONST IN9SE11 : IN : SE : !

Example references (1 of 1; assessments first):

INSE (In–Se)

Names (2): corpus: corpus:phase:in-se:inse
tdb: tdb:InSe-03Li.tdb:INSE

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

InSe-03Li.tdb: INSE, type code %, sha256 c0a793081ee0b619…

59: PHASE INSE % 2 1 1 !
60: CONST INSE : IN : SE : !

Example references (1 of 1; assessments first):

LIQUID (In–Se)

Names (2): corpus: corpus:phase:in-se:liquid
tdb: tdb:InSe-03Li.tdb:LIQUID

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

InSe-03Li.tdb: LIQUID, type code %, sha256 c0a793081ee0b619…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : IN IN2SE3 SE : !

Example references (1 of 1; assessments first):