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
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---|---|
| TETRAGONAL_A6 phase:in-se:a6-tetragonal | In · A6 · tI2 · I4/mmm (139) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–429.75 K, x(Se) 0–0 | 0 | 1 |
| HEXAGONAL_A8 phase:in-se:a8-hexagonal | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–494 K, x(Se) 1–1 | 0 | 1 |
| BCC_A2 phase:in-se:bcc-a2 | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| FCC_A1 phase:in-se:fcc-a1 | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| HCP_A3 phase:in-se:hcp-a3 | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| IN2SE3_BETA phase:in-se:in2se3-beta | needs_review | stable in 1 of 1 calculated diagram(s): 471.54–1152.24 K, x(Se) 0.596–0.596 | 0 | 1 | |
| IN2SE3_C33 phase:in-se:in2se3-c33 | Bi2Te3 · C33 · hR5 · R-3m (166) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–473.98 K, x(Se) 0.6–0.6 | 0 | 1 |
| IN2SE3_DELTA phase:in-se:in2se3-delta | needs_review | stable in 1 of 1 calculated diagram(s): 1017.96–1160 K, x(Se) 0.6–0.6 | 0 | 1 | |
| IN2SE3_GAMMA phase:in-se:in2se3-gamma | needs_review | stable in 1 of 1 calculated diagram(s): 473.98–1017.96 K, x(Se) 0.6–0.6 | 0 | 1 | |
| 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) 0.42857–0.42857 | 0 | 1 |
| IN5SE7 phase:in-se:in5se7 | needs_review | stable in 1 of 1 calculated diagram(s): 300–944.25 K, x(Se) 0.58333–0.58333 | 0 | 1 | |
| 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) 0.53846–0.53846 | 0 | 1 |
| IN9SE11 phase:in-se:in9se11 | needs_review | stable in 1 of 1 calculated diagram(s): 300–934.68 K, x(Se) 0.55–0.55 | 0 | 1 | |
| 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) 0.5–0.5 | 0 | 1 |
| LIQUID phase:in-se:liquid | liquid | liquid | stable in 1 of 1 calculated diagram(s): 429.75–2500 K, x(Se) 0–1 | 0 | 1 |
TETRAGONAL_A6 (In–Se)
- Id:
phase:in-se:a6-tetragonal; statusassigned - Structure: In · A6 · tI2 · I4/mmm (139); type
st:a6-in-ti2; tier A: standard phase name; confidence high - Stoichiometry: In 1.0000
- Stability: stable in 1 of 1 calculated diagram(s): 300–429.75 K, x(Se) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
HEXAGONAL_A8 (In–Se)
- Id:
phase:in-se:a8-hexagonal; statusassigned - Structure: gamma-Se · A8 · hP3 · P3_121 (152); type
st:a8-gamma-se-hp3; tier A: standard phase name; confidence high - Stoichiometry: Se 1.0000
- Stability: stable in 1 of 1 calculated diagram(s): 300–494 K, x(Se) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
BCC_A2 (In–Se)
- Id:
phase:in-se:bcc-a2; statusassigned - Structure: W · A2 · cI2 · Im-3m (229); type
st:a2-w-ci2; tier A: standard phase name; confidence high - Stoichiometry: In 1.0000
- Stability: not stable in 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
FCC_A1 (In–Se)
- Id:
phase:in-se:fcc-a1; statusassigned - Structure: Cu · A1 · cF4 · Fm-3m (225); type
st:a1-cu-cf4; tier A: standard phase name; confidence high - Stoichiometry: In 1.0000
- Stability: not stable in 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
HCP_A3 (In–Se)
- Id:
phase:in-se:hcp-a3; statusassigned - Structure: Mg · A3 · hP2 · P6_3/mmc (194); type
st:a3-mg-hp2; tier A: standard phase name; confidence high - Stoichiometry: In 1.0000
- Stability: not stable in 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN2SE3_BETA (In–Se)
- Id:
phase:in-se:in2se3-beta; statusneeds_review - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token
- Candidate (sgte_mmc2): In2Se3-beta · hP30 · P6_1 (169) — Hallstedt 2025 mmc2 row for IN2SE3_BETA: In2Se3-beta
- Candidate (tdb_comment): In2Se3-beta · hP30 · P6_1 — InSe-03Li.tdb: 'Prototype In2Se3-beta (hP30, P6_1)'
- Stoichiometry: In 0.4040, Se 0.5960
- Stability: stable in 1 of 1 calculated diagram(s): 471.54–1152.24 K, x(Se) 0.596–0.596
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN2SE3_C33 (In–Se)
- Id:
phase:in-se:in2se3-c33; statusassigned - Structure: Bi2Te3 · C33 · hR5 · R-3m (166); type
st:c33-bi2te3-hr5; tier A: standard phase name; confidence high - Stoichiometry: In 0.4000, Se 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 300–473.98 K, x(Se) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN2SE3_DELTA (In–Se)
- Id:
phase:in-se:in2se3-delta; statusneeds_review - No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (dft_mp): P6_1 (169) — on-hull MP In2Se3 at x(SE)=0.6000
- Candidate (dft_oqmd): P1 (1) — on-hull OQMD In2 Se3 at x(SE)=0.6000
- Candidate (sgte_mmc2): (In2Se3-delta) · hP5 — Hallstedt 2025 mmc2 row for IN2SE3_DELTA: In2Se3-delta
- Stoichiometry: In 0.4000, Se 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 1017.96–1160 K, x(Se) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN2SE3_GAMMA (In–Se)
- Id:
phase:in-se:in2se3-gamma; statusneeds_review - No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (dft_mp): P6_1 (169) — on-hull MP In2Se3 at x(SE)=0.6000
- Candidate (dft_oqmd): P1 (1) — on-hull OQMD In2 Se3 at x(SE)=0.6000
- Candidate (sgte_mmc2): (In2Se3-gamma) · hP10 — Hallstedt 2025 mmc2 row for IN2SE3_GAMMA: In2Se3-gamma
- Stoichiometry: In 0.4000, Se 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 473.98–1017.96 K, x(Se) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN4SE3 (In–Se)
- Id:
phase:in-se:in4se3; statusassigned - Structure: In4Se3 · oP28 · Pnnm (58); type
st:in4se3-op28; 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: In 0.5714, Se 0.4286
- Stability: stable in 1 of 1 calculated diagram(s): 300–821.98 K, x(Se) 0.42857–0.42857
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN5SE7 (In–Se)
- Id:
phase:in-se:in5se7; statusneeds_review - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (In5Se7) — Hallstedt 2025 mmc2 row for IN5SE7: In5Se7
- Stoichiometry: In 0.4167, Se 0.5833
- Stability: stable in 1 of 1 calculated diagram(s): 300–944.25 K, x(Se) 0.58333–0.58333
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN6SE7 (In–Se)
- Id:
phase:in-se:in6se7; statusassigned - Structure: In6S7 · mP26 · P2_1/m (11); type
st:in6s7-mp26; 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: In 0.4615, Se 0.5385
- Stability: stable in 1 of 1 calculated diagram(s): 300–924.07 K, x(Se) 0.53846–0.53846
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
IN9SE11 (In–Se)
- Id:
phase:in-se:in9se11; statusneeds_review - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (In9Se11) — Hallstedt 2025 mmc2 row for IN9SE11: In9Se11
- Stoichiometry: In 0.4500, Se 0.5500
- Stability: stable in 1 of 1 calculated diagram(s): 300–934.68 K, x(Se) 0.55–0.55
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
INSE (In–Se)
- Id:
phase:in-se:inse; statusassigned - Structure: GaSe · hR4 · R3m (160); type
st:gase-hr4; 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 (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: In 0.5000, Se 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–883.21 K, x(Se) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase
LIQUID (In–Se)
- Id:
phase:in-se:liquid; statusassigned - Structure: liquid; type
st:liquid; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 429.75–2500 K, x(Se) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
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):
- doi:10.1515/ijmr-2003-0069 J.-B. Li, M.-C. Record, J.-C. Tedenac, Z. Metallkd., 94, 381-89(2003).
assessment that models this phase