# Bi–Se phases > Bi–Se system: 14 phases (tier A 6, tier C 6, liquid 1, needs_review 1); 11 stable in a calculated diagram in the ORCHID phase registry, with names, structure type when the stored evidence supports an assignment under the stated tier rules, calculated stability, verbatim TDB PHASE/CONSTITUENT statements and example references. HTML: https://data.orchid-project.org/phases/pages/BI-SE.html · Markdown: https://data.orchid-project.org/phases/pages/BI-SE.md 14 phases (tier A 6, tier C 6, liquid 1, needs_review 1); 11 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](https://orchid-project.org/phases/?q=BI-SE) · [full JSON](https://data.orchid-project.org/phases/systems/BI-SE.json) · [Bi–Se system page](https://data.orchid-project.org/systems/BI-SE.html) · [Markdown](https://data.orchid-project.org/phases/pages/BI-SE.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Bi–Se system (14) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [RHOMBOHEDRAL_A7](#phase-bi-se-a7-rhombohedral); _phase:bi-se:a7-rhombohedral_ | alpha-As · A7 · hR2 · R-3m (166) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–544.55 K, x(Se) 0–0 | 8 | 4 | | [HEXAGONAL_A8](#phase-bi-se-a8-hexagonal); _phase:bi-se:a8-hexagonal_ | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–494 K, x(Se) 1–1 | 4 | 4 | | [BCC_A2](#phase-bi-se-bcc-a2); _phase:bi-se:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 | | [BI2SE3_C33](#phase-bi-se-bi2se3-c33); _phase:bi-se:bi2se3-c33_ | Bi2Te3 · C33 · hR5 · R-3m (166) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–989.65 K, x(Se) 0.59944–0.6002 | 17 | 4 | | [BI3SE2](#phase-bi-se-bi3se2); _phase:bi-se:bi3se2_ | (Bi3Se2) · hP12 · P-3m1 (164) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 3 of 3 calculated diagram(s): 300–746.02 K, x(Se) 0.4–0.4 | 18 | 3 | | [BI3SE4](#phase-bi-se-bi3se4); _phase:bi-se:bi3se4_ | In3Te4 · hR7 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–935.36 K, x(Se) 0.57143–0.57143 | 11 | 1 | | [BI4SE3](#phase-bi-se-bi4se3); _phase:bi-se:bi4se3_ | Bi4Se3 · hR7 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–830.56 K, x(Se) 0.42857–0.42857 | 11 | 1 | | [BI4SE5](#phase-bi-se-bi4se5); _phase:bi-se:bi4se5_ | | needs_review | stable in 1 of 1 calculated diagram(s): 300–895.32 K, x(Se) 0.55556–0.55556 | 0 | 1 | | [BI8SE7](#phase-bi-se-bi8se7); _phase:bi-se:bi8se7_ | Bi8Se7 · hP45 · P-3m1 (164) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–855.48 K, x(Se) 0.46667–0.46667 | 11 | 1 | | [BI8SE9](#phase-bi-se-bi8se9); _phase:bi-se:bi8se9_ | Bi8Se9 · hR17 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–884.69 K, x(Se) 0.52941–0.52941 | 10 | 1 | | [BISE](#phase-bi-se-bise); _phase:bi-se:bise_ | BiSe · hP12 · P-3m1 (164) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 3 of 3 calculated diagram(s): 300–887.03 K, x(Se) 0.40604–0.56195 | 16 | 3 | | [FCC_A1](#phase-bi-se-fcc-a1); _phase:bi-se:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 | | [HCP_A3](#phase-bi-se-hcp-a3); _phase:bi-se:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 | | [LIQUID](#phase-bi-se-liquid); _phase:bi-se:liquid_ | liquid | liquid | stable in 4 of 4 calculated diagram(s): 494–2500 K, x(Se) 0–1 | 38 | 4 | ## RHOMBOHEDRAL_A7 (Bi–Se) - Id: `phase:bi-se:a7-rhombohedral`; status `assigned` - Structure: alpha-As · A7 · hR2 · R-3m (166); type `st:a7-alpha-as-hr2`; tier A: standard phase name; confidence high - Stoichiometry: Bi 1.0000 - Stability: stable in 4 of 4 calculated diagram(s): 300–544.55 K, x(Se) 0–0 - Literature: 8 values (8 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:a7-rhombohedral) Names (8): _corpus: _corpus:phase:bi-se:a7-rhombohedral, corpus:phase:bi-se:rhombohedral-a7 _paper: _paper:10.1007/s11669-024-01093-z:(Bi), paper:10.1016/j.jallcom.2014.08.001:rho _tdb: _tdb:BiSe-14Che.tdb:RHOMBOHEDRAL_A7, tdb:BiSe-18Pet.tdb:RHOMBOHEDRAL_A7, tdb:BiSe-20Che.tdb:RHOMBOHEDRAL_A7, tdb:BiSe-24Zho.tdb:RHOMBOHEDRAL_A7 ### TDB models of RHOMBOHEDRAL_A7 (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `0fcdd9b2c60c49ee…` ~~~~text 51: PHASE RHOMBOHEDRAL_A7 % 1 1 ! 52: CONST RHOMBOHEDRAL_A7 : BI : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `786c91341c5c9003…` ~~~~text 52: PHASE RHOMBOHEDRAL_A7 % 1 1 ! 53: CONST RHOMBOHEDRAL_A7 : BI : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `3896c882c74c8447…` ~~~~text 52: PHASE RHOMBOHEDRAL_A7 % 1 1 ! 53: CONST RHOMBOHEDRAL_A7 : BI : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `145dfc0591be3927…` ~~~~text 51: PHASE RHOMBOHEDRAL_A7 % 1 1 ! 52: CONST RHOMBOHEDRAL_A7 : BI : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1515/ijmr-1975-660607](https://doi.org/10.1515/ijmr-1975-660607) B. Gather, and R. Blachnik, Tenary Systems Containing Chalcogenides. II. The Gold-Bismuth-Selenium System, Z. Metallkd., 1975, 66, p 356–359. _cited as the source of values for this phase_ ## HEXAGONAL_A8 (Bi–Se) - Id: `phase:bi-se:a8-hexagonal`; status `assigned` - 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 4 of 4 calculated diagram(s): 300–494 K, x(Se) 1–1 - Literature: 4 values (4 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:a8-hexagonal) Names (8): _corpus: _corpus:phase:bi-se:a8-hexagonal, corpus:phase:bi-se:hexagonal-a8 _paper: _paper:10.1007/s11669-024-01093-z:(Se), paper:10.1016/j.jallcom.2014.08.001:hex _tdb: _tdb:BiSe-14Che.tdb:HEXAGONAL_A8, tdb:BiSe-18Pet.tdb:HEXAGONAL_A8, tdb:BiSe-20Che.tdb:HEXAGONAL_A8, tdb:BiSe-24Zho.tdb:HEXAGONAL_A8 ### TDB models of HEXAGONAL_A8 (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): HEXAGONAL_A8, type code %, sha256 `0fcdd9b2c60c49ee…` ~~~~text 56: PHASE HEXAGONAL_A8 % 1 1 ! 57: CONST HEXAGONAL_A8 : SE : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): HEXAGONAL_A8, type code %, sha256 `786c91341c5c9003…` ~~~~text 57: PHASE HEXAGONAL_A8 % 1 1 ! 58: CONST HEXAGONAL_A8 : SE : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): HEXAGONAL_A8, type code %, sha256 `3896c882c74c8447…` ~~~~text 57: PHASE HEXAGONAL_A8 % 1 1 ! 58: CONST HEXAGONAL_A8 : SE : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): HEXAGONAL_A8, type code %, sha256 `145dfc0591be3927…` ~~~~text 56: PHASE HEXAGONAL_A8 % 1 1 ! 57: CONST HEXAGONAL_A8 : SE : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ ## BCC_A2 (Bi–Se) - Id: `phase:bi-se:bcc-a2`; status `assigned` - Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high - Stoichiometry: Bi 1.0000 - Stability: not stable in 4 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bcc-a2) Names (5): _corpus: _corpus:phase:bi-se:bcc-a2 _tdb: _tdb:BiSe-14Che.tdb:BCC_A2, tdb:BiSe-18Pet.tdb:BCC_A2, tdb:BiSe-20Che.tdb:BCC_A2, tdb:BiSe-24Zho.tdb:BCC_A2 ### TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): BCC_A2, type code %B, sha256 `0fcdd9b2c60c49ee…` ~~~~text 41: PHASE BCC_A2 %B 2 1 3 ! 42: CONST BCC_A2 : BI : VA : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): BCC_A2, type code %B, sha256 `786c91341c5c9003…` ~~~~text 42: PHASE BCC_A2 %B 2 1 3 ! 43: CONST BCC_A2 : BI : VA : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): BCC_A2, type code %B, sha256 `3896c882c74c8447…` ~~~~text 42: PHASE BCC_A2 %B 2 1 3 ! 43: CONST BCC_A2 : BI : VA : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BCC_A2, type code %B, sha256 `145dfc0591be3927…` ~~~~text 41: PHASE BCC_A2 %B 2 1 3 ! 42: CONST BCC_A2 : BI : VA : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase_ ## BI2SE3_C33 (Bi–Se) - Id: `phase:bi-se:bi2se3-c33`; status `assigned` - Structure: Bi2Te3 · C33 · hR5 · R-3m (166); type `st:c33-bi2te3-hr5`; tier A: standard phase name; confidence high - Stability: stable in 4 of 4 calculated diagram(s): 300–989.65 K, x(Se) 0.59944–0.6002 - Literature: 17 values (17 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi2se3-c33) Names (7): _corpus: _corpus:phase:bi-se:bi2se3-c33 _paper: _paper:10.1007/s11669-024-01093-z:Bi2Se3, paper:10.1016/j.jallcom.2014.08.001:Bi2Se3 _tdb: _tdb:BiSe-14Che.tdb:BI2SE3_C33, tdb:BiSe-18Pet.tdb:BI2SE3_C33, tdb:BiSe-20Che.tdb:BI2SE3_C33, tdb:BiSe-24Zho.tdb:BI2SE3_C33 ### TDB models of BI2SE3_C33 (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): BI2SE3_C33, type code %, sha256 `0fcdd9b2c60c49ee…` ~~~~text 71: PHASE BI2SE3_C33 % 2 2 3 ! 72: CONST BI2SE3_C33 : BI : SE : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): BI2SE3_C33, type code %, sha256 `786c91341c5c9003…` ~~~~text 72: PHASE BI2SE3_C33 % 2 2 3 ! 73: CONST BI2SE3_C33 : BI% SE : SE% VA : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): BI2SE3_C33, type code %, sha256 `3896c882c74c8447…` ~~~~text 67: PHASE BI2SE3_C33 % 2 2 3 ! 68: CONST BI2SE3_C33 : BI : SE : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BI2SE3_C33, type code %, sha256 `145dfc0591be3927…` ~~~~text 91: PHASE BI2SE3_C33 % 2 2 3 ! 92: CONST BI2SE3_C33 : BI : SE : ! ~~~~ Example references (4 of 4; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ ## BI3SE2 (Bi–Se) - Id: `phase:bi-se:bi3se2`; status `assigned` - Structure: (Bi3Se2) · hP12 · P-3m1 (164); type `st:bi3se2-hp12`; 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](https://doi.org/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: Bi 0.6000, Se 0.4000 - Stability: stable in 3 of 3 calculated diagram(s): 300–746.02 K, x(Se) 0.4–0.4 - Literature: 18 values (18 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi3se2) Names (6): _corpus: _corpus:phase:bi-se:bi3se2 _paper: _paper:10.1007/s11669-024-01093-z:Bi3Se2, paper:10.1016/j.jallcom.2014.08.001:Bi3Se2 _tdb: _tdb:BiSe-14Che.tdb:BI3SE2, tdb:BiSe-18Pet.tdb:BI3SE2, tdb:BiSe-24Zho.tdb:BI3SE2 ### TDB models of BI3SE2 (3): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): BI3SE2, type code %, sha256 `0fcdd9b2c60c49ee…` ~~~~text 61: PHASE BI3SE2 % 2 3 2 ! 62: CONST BI3SE2 : BI : SE : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): BI3SE2, type code %, sha256 `786c91341c5c9003…` ~~~~text 62: PHASE BI3SE2 % 2 3 2 ! 63: CONST BI3SE2 : BI : SE : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BI3SE2, type code %, sha256 `145dfc0591be3927…` ~~~~text 61: PHASE BI3SE2 % 2 3 2 ! 62: CONST BI3SE2 : BI : SE : ! ~~~~ Example references (6 of 6; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1007/s11837-013-0755-4](https://doi.org/10.1007/s11837-013-0755-4) James E. Saal, Scott Kirklin, Muratahan Aykol, Bryce Meredig, C. Wolverton, Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD), JOM 65, 1501-1509 (2013). _cited as the source of values for this phase_ - [doi:10.1007/s11837-021-04621-1](https://doi.org/10.1007/s11837-021-04621-1) Gunel S. Hasanova, Aytan I. Aghazade, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Refinement of the Phase Diagram of the Bi-Te System and the Thermodynamic Properties of Lower Bismuth Tellurides, JOM 73, 1511-1521 (2021). _cited as the source of values for this phase_ - [doi:10.1515/ijmr-1975-660607](https://doi.org/10.1515/ijmr-1975-660607) B. Gather, and R. Blachnik, Tenary Systems Containing Chalcogenides. II. The Gold-Bismuth-Selenium System, Z. Metallkd., 1975, 66, p 356–359. _cited as the source of values for this phase_ ## BI3SE4 (Bi–Se) - Id: `phase:bi-se:bi3se4`; status `assigned` - Structure: In3Te4 · hR7 · R-3m (166); type `st:in3te4-hr7`; 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](https://doi.org/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: Bi 0.4286, Se 0.5714 - Stability: stable in 1 of 1 calculated diagram(s): 300–935.36 K, x(Se) 0.57143–0.57143 - Literature: 11 values (11 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi3se4) Names (3): _corpus: _corpus:phase:bi-se:bi3se4 _paper: _paper:10.1007/s11669-024-01093-z:Bi3Se4 _tdb: _tdb:BiSe-24Zho.tdb:BI3SE4 ### TDB models of BI3SE4 (1): PHASE and CONSTITUENT statements as written [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BI3SE4, type code %, sha256 `145dfc0591be3927…` ~~~~text 86: PHASE BI3SE4 % 2 3 4 ! 87: CONST BI3SE4 : BI : SE : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1007/s11837-013-0755-4](https://doi.org/10.1007/s11837-013-0755-4) James E. Saal, Scott Kirklin, Muratahan Aykol, Bryce Meredig, C. Wolverton, Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD), JOM 65, 1501-1509 (2013). _cited as the source of values for this phase_ - [doi:10.1007/s11837-021-04621-1](https://doi.org/10.1007/s11837-021-04621-1) Gunel S. Hasanova, Aytan I. Aghazade, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Refinement of the Phase Diagram of the Bi-Te System and the Thermodynamic Properties of Lower Bismuth Tellurides, JOM 73, 1511-1521 (2021). _cited as the source of values for this phase_ - [doi:10.1063/1.4812323](https://doi.org/10.1063/1.4812323) Anubhav Jain, Shyue Ping Ong, Geoffroy Hautier, Wei Chen, William Davidson Richards, Stephen Dacek et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013). _cited as the source of values for this phase_ ## BI4SE3 (Bi–Se) - Id: `phase:bi-se:bi4se3`; status `assigned` - Structure: Bi4Se3 · hR7 · R-3m (166); type `st:bi4se3-hr7`; 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](https://doi.org/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: Bi 0.5714, Se 0.4286 - Stability: stable in 1 of 1 calculated diagram(s): 300–830.56 K, x(Se) 0.42857–0.42857 - Literature: 11 values (11 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi4se3) Names (3): _corpus: _corpus:phase:bi-se:bi4se3 _paper: _paper:10.1007/s11669-024-01093-z:Bi4Se3 _tdb: _tdb:BiSe-24Zho.tdb:BI4SE3 ### TDB models of BI4SE3 (1): PHASE and CONSTITUENT statements as written [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BI4SE3, type code %, sha256 `145dfc0591be3927…` ~~~~text 66: PHASE BI4SE3 % 2 4 3 ! 67: CONST BI4SE3 : BI : SE : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1007/s11837-013-0755-4](https://doi.org/10.1007/s11837-013-0755-4) James E. Saal, Scott Kirklin, Muratahan Aykol, Bryce Meredig, C. Wolverton, Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD), JOM 65, 1501-1509 (2013). _cited as the source of values for this phase_ - [doi:10.1007/s11837-021-04621-1](https://doi.org/10.1007/s11837-021-04621-1) Gunel S. Hasanova, Aytan I. Aghazade, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Refinement of the Phase Diagram of the Bi-Te System and the Thermodynamic Properties of Lower Bismuth Tellurides, JOM 73, 1511-1521 (2021). _cited as the source of values for this phase_ - [doi:10.1063/1.4812323](https://doi.org/10.1063/1.4812323) Anubhav Jain, Shyue Ping Ong, Geoffroy Hautier, Wei Chen, William Davidson Richards, Stephen Dacek et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013). _cited as the source of values for this phase_ ## BI4SE5 (Bi–Se) - Id: `phase:bi-se:bi4se5`; status `needs_review` - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete - Candidate (sgte_mmc2): (Bi4Se5) — Hallstedt 2025 mmc2 row for BI4SE5: Bi4Se5 - Stoichiometry: Bi 0.4444, Se 0.5556 - Stability: stable in 1 of 1 calculated diagram(s): 300–895.32 K, x(Se) 0.55556–0.55556 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi4se5) Names (2): _corpus: _corpus:phase:bi-se:bi4se5 _tdb: _tdb:BiSe-18Pet.tdb:BI4SE5 ### TDB models of BI4SE5 (1): PHASE and CONSTITUENT statements as written [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): BI4SE5, type code %, sha256 `786c91341c5c9003…` ~~~~text 67: PHASE BI4SE5 % 2 4 5 ! 68: CONST BI4SE5 : BI : SE : ! ~~~~ ## BI8SE7 (Bi–Se) - Id: `phase:bi-se:bi8se7`; status `assigned` - Structure: Bi8Se7 · hP45 · P-3m1 (164); type `st:bi8se7-hp45`; 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](https://doi.org/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: Bi 0.5333, Se 0.4667 - Stability: stable in 1 of 1 calculated diagram(s): 300–855.48 K, x(Se) 0.46667–0.46667 - Literature: 11 values (11 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi8se7) Names (3): _corpus: _corpus:phase:bi-se:bi8se7 _paper: _paper:10.1007/s11669-024-01093-z:Bi8Se7 _tdb: _tdb:BiSe-24Zho.tdb:BI8SE7 ### TDB models of BI8SE7 (1): PHASE and CONSTITUENT statements as written [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BI8SE7, type code %, sha256 `145dfc0591be3927…` ~~~~text 71: PHASE BI8SE7 % 2 8 7 ! 72: CONST BI8SE7 : BI : SE : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1007/s11837-013-0755-4](https://doi.org/10.1007/s11837-013-0755-4) James E. Saal, Scott Kirklin, Muratahan Aykol, Bryce Meredig, C. Wolverton, Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD), JOM 65, 1501-1509 (2013). _cited as the source of values for this phase_ - [doi:10.1007/s11837-021-04621-1](https://doi.org/10.1007/s11837-021-04621-1) Gunel S. Hasanova, Aytan I. Aghazade, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Refinement of the Phase Diagram of the Bi-Te System and the Thermodynamic Properties of Lower Bismuth Tellurides, JOM 73, 1511-1521 (2021). _cited as the source of values for this phase_ - [doi:10.1063/1.4812323](https://doi.org/10.1063/1.4812323) Anubhav Jain, Shyue Ping Ong, Geoffroy Hautier, Wei Chen, William Davidson Richards, Stephen Dacek et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013). _cited as the source of values for this phase_ ## BI8SE9 (Bi–Se) - Id: `phase:bi-se:bi8se9`; status `assigned` - Structure: Bi8Se9 · hR17 · R-3m (166); type `st:bi8se9-hr17`; 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](https://doi.org/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: Bi 0.4706, Se 0.5294 - Stability: stable in 1 of 1 calculated diagram(s): 300–884.69 K, x(Se) 0.52941–0.52941 - Literature: 10 values (10 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bi8se9) Names (3): _corpus: _corpus:phase:bi-se:bi8se9 _paper: _paper:10.1007/s11669-024-01093-z:Bi8Se9 _tdb: _tdb:BiSe-24Zho.tdb:BI8SE9 ### TDB models of BI8SE9 (1): PHASE and CONSTITUENT statements as written [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BI8SE9, type code %, sha256 `145dfc0591be3927…` ~~~~text 81: PHASE BI8SE9 % 2 8 9 ! 82: CONST BI8SE9 : BI : SE : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1007/s11837-013-0755-4](https://doi.org/10.1007/s11837-013-0755-4) James E. Saal, Scott Kirklin, Muratahan Aykol, Bryce Meredig, C. Wolverton, Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD), JOM 65, 1501-1509 (2013). _cited as the source of values for this phase_ - [doi:10.1007/s11837-021-04621-1](https://doi.org/10.1007/s11837-021-04621-1) Gunel S. Hasanova, Aytan I. Aghazade, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Refinement of the Phase Diagram of the Bi-Te System and the Thermodynamic Properties of Lower Bismuth Tellurides, JOM 73, 1511-1521 (2021). _cited as the source of values for this phase_ - [doi:10.1063/1.4812323](https://doi.org/10.1063/1.4812323) Anubhav Jain, Shyue Ping Ong, Geoffroy Hautier, Wei Chen, William Davidson Richards, Stephen Dacek et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013). _cited as the source of values for this phase_ ## BISE (Bi–Se) - Id: `phase:bi-se:bise`; status `assigned` - Structure: BiSe · hP12 · P-3m1 (164); type `st:bise-hp12`; 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](https://doi.org/10.1016/j.calphad.2025.102833) - Caveat: not certain from the name or DFT alone (no_structure_token, off_stoichiometric_model); structure as stated in the SGTE crystallographic table for this phase name and system - Stability: stable in 3 of 3 calculated diagram(s): 300–887.03 K, x(Se) 0.40604–0.56195 - Literature: 16 values (16 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:bise) Names (6): _corpus: _corpus:phase:bi-se:bise _paper: _paper:10.1007/s11669-024-01093-z:BiSe, paper:10.1016/j.jallcom.2014.08.001:BiSe _tdb: _tdb:BiSe-14Che.tdb:BISE, tdb:BiSe-20Che.tdb:BISE, tdb:BiSe-24Zho.tdb:BISE ### TDB models of BISE (3): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): BISE, type code %, sha256 `0fcdd9b2c60c49ee…` ~~~~text 66: PHASE BISE % 3 2 1 2 ! 67: CONST BISE : BI : BI SE : SE : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): BISE, type code %, sha256 `3896c882c74c8447…` ~~~~text 62: PHASE BISE % 3 2 1 2 ! 63: CONST BISE : BI : BI SE : SE : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): BISE, type code %, sha256 `145dfc0591be3927…` ~~~~text 76: PHASE BISE % 2 1 1 ! 77: CONST BISE : BI : SE : ! ~~~~ Example references (7 of 7; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1007/s11837-013-0755-4](https://doi.org/10.1007/s11837-013-0755-4) James E. Saal, Scott Kirklin, Muratahan Aykol, Bryce Meredig, C. Wolverton, Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD), JOM 65, 1501-1509 (2013). _cited as the source of values for this phase_ - [doi:10.1007/s11837-021-04621-1](https://doi.org/10.1007/s11837-021-04621-1) Gunel S. Hasanova, Aytan I. Aghazade, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Refinement of the Phase Diagram of the Bi-Te System and the Thermodynamic Properties of Lower Bismuth Tellurides, JOM 73, 1511-1521 (2021). _cited as the source of values for this phase_ - [doi:10.1063/1.4812323](https://doi.org/10.1063/1.4812323) Anubhav Jain, Shyue Ping Ong, Geoffroy Hautier, Wei Chen, William Davidson Richards, Stephen Dacek et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013). _cited as the source of values for this phase_ ## FCC_A1 (Bi–Se) - Id: `phase:bi-se:fcc-a1`; status `assigned` - Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high - Stoichiometry: Bi 1.0000 - Stability: not stable in 4 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:fcc-a1) Names (5): _corpus: _corpus:phase:bi-se:fcc-a1 _tdb: _tdb:BiSe-14Che.tdb:FCC_A1, tdb:BiSe-18Pet.tdb:FCC_A1, tdb:BiSe-20Che.tdb:FCC_A1, tdb:BiSe-24Zho.tdb:FCC_A1 ### TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): FCC_A1, type code %A, sha256 `0fcdd9b2c60c49ee…` ~~~~text 36: PHASE FCC_A1 %A 2 1 1 ! 37: CONST FCC_A1 : BI : VA : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): FCC_A1, type code %A, sha256 `786c91341c5c9003…` ~~~~text 37: PHASE FCC_A1 %A 2 1 1 ! 38: CONST FCC_A1 : BI : VA : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): FCC_A1, type code %A, sha256 `3896c882c74c8447…` ~~~~text 37: PHASE FCC_A1 %A 2 1 1 ! 38: CONST FCC_A1 : BI : VA : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): FCC_A1, type code %A, sha256 `145dfc0591be3927…` ~~~~text 36: PHASE FCC_A1 %A 2 1 1 ! 37: CONST FCC_A1 : BI : VA : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase_ ## HCP_A3 (Bi–Se) - Id: `phase:bi-se: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: Bi 1.0000 - Stability: not stable in 4 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:hcp-a3) Names (5): _corpus: _corpus:phase:bi-se:hcp-a3 _tdb: _tdb:BiSe-14Che.tdb:HCP_A3, tdb:BiSe-18Pet.tdb:HCP_A3, tdb:BiSe-20Che.tdb:HCP_A3, tdb:BiSe-24Zho.tdb:HCP_A3 ### TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): HCP_A3, type code %A, sha256 `0fcdd9b2c60c49ee…` ~~~~text 46: PHASE HCP_A3 %A 2 1 0.5 ! 47: CONST HCP_A3 : BI : VA : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): HCP_A3, type code %A, sha256 `786c91341c5c9003…` ~~~~text 47: PHASE HCP_A3 %A 2 1 0.5 ! 48: CONST HCP_A3 : BI : VA : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): HCP_A3, type code %A, sha256 `3896c882c74c8447…` ~~~~text 47: PHASE HCP_A3 %A 2 1 0.5 ! 48: CONST HCP_A3 : BI : VA : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): HCP_A3, type code %A, sha256 `145dfc0591be3927…` ~~~~text 46: PHASE HCP_A3 %A 2 1 0.5 ! 47: CONST HCP_A3 : BI : VA : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase_ ## LIQUID (Bi–Se) - Id: `phase:bi-se:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 4 of 4 calculated diagram(s): 494–2500 K, x(Se) 0–1 - Literature: 38 values (38 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-se:liquid) Names (9): _corpus: _corpus:phase:bi-se:liquid, corpus:phase:bi-se:liquid-2 _paper: _paper:10.1007/s11669-024-01093-z:Liquid#1, paper:10.1007/s11669-024-01093-z:Liquid#2, paper:10.1016/j.jallcom.2014.08.001:Liq _tdb: _tdb:BiSe-14Che.tdb:LIQUID, tdb:BiSe-18Pet.tdb:LIQUID, tdb:BiSe-20Che.tdb:LIQUID, tdb:BiSe-24Zho.tdb:LIQUID ### TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written [BiSe-14Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-14Che.tdb): LIQUID, type code %, sha256 `0fcdd9b2c60c49ee…` ~~~~text 31: PHASE LIQUID:L % 1 1 ! 32: CONST LIQUID:L : BI BI2SE3 SE : ! ~~~~ [BiSe-18Pet.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-18Pet.tdb): LIQUID, type code %, sha256 `786c91341c5c9003…` ~~~~text 32: PHASE LIQUID:L % 1 1 ! 33: CONST LIQUID:L : BI BI2SE3 SE : ! ~~~~ [BiSe-20Che.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-20Che.tdb): LIQUID, type code %, sha256 `3896c882c74c8447…` ~~~~text 32: PHASE LIQUID:L % 1 1 ! 33: CONST LIQUID:L : BI BI2SE3 SE : ! ~~~~ [BiSe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiSe-24Zho.tdb): LIQUID, type code %, sha256 `145dfc0591be3927…` ~~~~text 31: PHASE LIQUID:L % 1 1 ! 32: CONST LIQUID:L : BI BI2SE3 SE : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1007/s11669-024-01093-z](https://doi.org/10.1007/s11669-024-01093-z) Jiaqiang Zhou, Jiong Wang, Biao Hu, Dongyu Cui, Thermodynamic Modeling of the Bi-Se and Bi-Te Binary Systems, J. Phase Equilib. Diffus. 45, 89-113 (2024). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2014.08.001](https://doi.org/10.1016/j.jallcom.2014.08.001) Yang Chen, Yajun Liu, Maoyou Chu, Lijun Wang, Phase diagrams and thermodynamic descriptions for the Bi–Se and Zn–Se binary systems, Journal of Alloys and Compounds 617, 423-428 (2014). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.calphad.2020.101744](https://doi.org/10.1016/j.calphad.2020.101744) S.-W. Chen, Y. Hutabalian, W. Gierlotka, C.-H. Wang, S.-T. Lu, Calphad, 68, 101744(2020). _assessment that models this phase_ - [doi:10.1007/s10973-021-10975-0](https://doi.org/10.1007/s10973-021-10975-0) Gunel S. Hasanova, Aytan I. Aghazade, Dunya M. Babanly, Samira Z. Imamaliyeva, Yusif A. Yusibov, Mahammad B. Babanly, Experimental study of the phase relations and thermodynamic properties of Bi-Se system, J Therm Anal Calorim 147, 6403-6414 (2022). _cited as the source of values for this phase_ - [doi:10.1515/ijmr-1975-660607](https://doi.org/10.1515/ijmr-1975-660607) B. Gather, and R. Blachnik, Tenary Systems Containing Chalcogenides. II. The Gold-Bismuth-Selenium System, Z. Metallkd., 1975, 66, p 356–359. _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). https://doi.org/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). https://doi.org/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. ```bibtex @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} } ``` --- Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).