# Bi–Te phases
> Bi–Te system: 13 phases (tier A 6, tier C 4, liquid 1, needs_review 2); 10 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-TE.html · Markdown: https://data.orchid-project.org/phases/pages/BI-TE.md
13 phases (tier A 6, tier C 4, liquid 1, needs_review 2); 10 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-TE) · [full JSON](https://data.orchid-project.org/phases/systems/BI-TE.json) · [Bi–Te system page](https://data.orchid-project.org/systems/BI-TE.html) · [Markdown](https://data.orchid-project.org/phases/pages/BI-TE.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)
Table: Phases of the Bi–Te system (13)
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [RHOMBOHEDRAL_A7](#phase-bi-te-a7-rhombohedral); _phase:bi-te: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(Te) 0–0 | 10 | 4 |
| [HEXAGONAL_A8](#phase-bi-te-a8-hexagonal); _phase:bi-te:a8-hexagonal_ | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–722.66 K, x(Te) 1–1 | 10 | 4 |
| [BCC_A2](#phase-bi-te-bcc-a2); _phase:bi-te:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 4 calculated diagram(s) | 0 | 4 |
| [BI2TE](#phase-bi-te-bi2te); _phase:bi-te:bi2te_ | Sb2Te · hP9 · P-3m1 (164) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 4 of 4 calculated diagram(s): 300–694.45 K, x(Te) 0.33333–0.33333 | 22 | 4 |
| [BI2TE3_C33](#phase-bi-te-bi2te3-c33); _phase:bi-te:bi2te3-c33_ | Bi2Te3 · C33 · hR5 · R-3m (166) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–860.19 K, x(Te) 0.59625–0.60707 | 30 | 4 |
| [BI4TE3](#phase-bi-te-bi4te3); _phase:bi-te:bi4te3_ | Bi4Se3 · hR7 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 3 of 3 calculated diagram(s): 300–725.96 K, x(Te) 0.42857–0.42857 | 7 | 3 |
| [BI4TE5](#phase-bi-te-bi4te5); _phase:bi-te:bi4te5_ | | needs_review | stable in 1 of 1 calculated diagram(s): 300–833.61 K, x(Te) 0.55556–0.55556 | 7 | 1 |
| [BI7TE3](#phase-bi-te-bi7te3); _phase:bi-te:bi7te3_ | Sb8Te3 · hR11 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–604.83 K, x(Te) 0.3–0.3 | 21 | 2 |
| [BI8TE9](#phase-bi-te-bi8te9); _phase:bi-te:bi8te9_ | Bi8Se9 · hR17 · R-3m (166) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–822.75 K, x(Te) 0.52941–0.52941 | 7 | 1 |
| [BITE](#phase-bi-te-bite); _phase:bi-te:bite_ | | needs_review | stable in 4 of 4 calculated diagram(s): 300–832.68 K, x(Te) 0.27635–0.56605 | 25 | 4 |
| [FCC_A1](#phase-bi-te-fcc-a1); _phase:bi-te: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-te-hcp-a3); _phase:bi-te: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-te-liquid); _phase:bi-te:liquid_ | liquid | liquid | stable in 4 of 4 calculated diagram(s): 536.46–2500 K, x(Te) 0–1 | 54 | 4 |
## RHOMBOHEDRAL_A7 (Bi–Te)
- Id: `phase:bi-te: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(Te) 0–0
- Literature: 10 values (10 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:a7-rhombohedral)
Names (8): _corpus: _corpus:phase:bi-te:a7-rhombohedral, corpus:phase:bi-te:rhombohedral-a7
_paper: _paper:10.1007/s11669-023-01049-9:(Bi), paper:10.1007/s11669-024-01093-z:(Bi)
_tdb: _tdb:BiTe-18Gie.tdb:RHOMBOHEDRAL_A7, tdb:BiTe-18Mao.tdb:RHOMBOHEDRAL_A7, tdb:BiTe-23Drz.tdb:RHOMBOHEDRAL_A7, tdb:BiTe-24Zho.tdb:RHOMBOHEDRAL_A7
### TDB models of RHOMBOHEDRAL_A7 (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `e62921a019778da4…`
~~~~text
55: PHASE RHOMBOHEDRAL_A7 % 1 1 !
56: CONST RHOMBOHEDRAL_A7 : BI : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `48a482c6fa140bba…`
~~~~text
47: PHASE RHOMBOHEDRAL_A7 % 1 1 !
48: CONST RHOMBOHEDRAL_A7 : BI : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
52: PHASE RHOMBOHEDRAL_A7 % 1 1 !
53: CONST RHOMBOHEDRAL_A7 : BI : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
46: PHASE RHOMBOHEDRAL_A7 % 1 1 !
47: CONST RHOMBOHEDRAL_A7 : BI : !
~~~~
Example references (8 of 8; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models this phase_
- [doi:10.1149/1.2423400](https://doi.org/10.1149/1.2423400) A.C. Glatz, An Evaluation of the Bismuth-Tellurium Phase System, J. Electrochem. Soc., 1965, 112, p 1204–1207.
_cited as the source of values for this phase_
- [doi:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_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:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
## HEXAGONAL_A8 (Bi–Te)
- Id: `phase:bi-te: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: Te 1.0000
- Stability: stable in 4 of 4 calculated diagram(s): 300–722.66 K, x(Te) 1–1
- Literature: 10 values (10 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:a8-hexagonal)
Names (8): _corpus: _corpus:phase:bi-te:a8-hexagonal, corpus:phase:bi-te:hexagonal-a8
_paper: _paper:10.1007/s11669-023-01049-9:(Te), paper:10.1007/s11669-024-01093-z:(Te)
_tdb: _tdb:BiTe-18Gie.tdb:HEXAGONAL_A8, tdb:BiTe-18Mao.tdb:HEXAGONAL_A8, tdb:BiTe-23Drz.tdb:HEXAGONAL_A8, tdb:BiTe-24Zho.tdb:HEXAGONAL_A8
### TDB models of HEXAGONAL_A8 (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): HEXAGONAL_A8, type code %, sha256 `e62921a019778da4…`
~~~~text
62: PHASE HEXAGONAL_A8 % 1 1 !
63: CONST HEXAGONAL_A8 : TE : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): HEXAGONAL_A8, type code %, sha256 `48a482c6fa140bba…`
~~~~text
54: PHASE HEXAGONAL_A8 % 1 1 !
55: CONST HEXAGONAL_A8 : TE : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): HEXAGONAL_A8, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
59: PHASE HEXAGONAL_A8 % 1 1 !
60: CONST HEXAGONAL_A8 : TE : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): HEXAGONAL_A8, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
53: PHASE HEXAGONAL_A8 % 1 1 !
54: CONST HEXAGONAL_A8 : TE : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase; cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models this phase_
- [doi:10.1149/1.2423400](https://doi.org/10.1149/1.2423400) A.C. Glatz, An Evaluation of the Bismuth-Tellurium Phase System, J. Electrochem. Soc., 1965, 112, p 1204–1207.
_cited as the source of values for this phase_
- [doi:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_cited as the source of values for this phase_
## BCC_A2 (Bi–Te)
- Id: `phase:bi-te: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-te:bcc-a2)
Names (5): _corpus: _corpus:phase:bi-te:bcc-a2
_tdb: _tdb:BiTe-18Gie.tdb:BCC_A2, tdb:BiTe-18Mao.tdb:BCC_A2, tdb:BiTe-23Drz.tdb:BCC_A2, tdb:BiTe-24Zho.tdb:BCC_A2
### TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): BCC_A2, type code %B, sha256 `e62921a019778da4…`
~~~~text
45: PHASE BCC_A2 %B 2 1 3 !
46: CONST BCC_A2 : BI : VA : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): BCC_A2, type code %B, sha256 `48a482c6fa140bba…`
~~~~text
37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : BI : VA : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): BCC_A2, type code %B, sha256 `f0f0bd5a3c792778…`
~~~~text
42: PHASE BCC_A2 %B 2 1 3 !
43: CONST BCC_A2 : BI : VA : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BCC_A2, type code %B, sha256 `2cbb5fbf130932bd…`
~~~~text
36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : BI : VA : !
~~~~
Example references (4 of 4; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase_
- [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.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models this phase_
## BI2TE (Bi–Te)
- Id: `phase:bi-te:bi2te`; status `assigned`
- Structure: Sb2Te · hP9 · P-3m1 (164); type `st:sb2te-hp9`; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Bi 0.6667, Te 0.3333
- Stability: stable in 4 of 4 calculated diagram(s): 300–694.45 K, x(Te) 0.33333–0.33333
- Literature: 22 values (22 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bi2te)
Names (7): _corpus: _corpus:phase:bi-te:bi2te
_paper: _paper:10.1007/s11669-023-01049-9:Bi2Te, paper:10.1007/s11669-024-01093-z:Bi2Te
_tdb: _tdb:BiTe-18Gie.tdb:BI2TE, tdb:BiTe-18Mao.tdb:BI2TE, tdb:BiTe-23Drz.tdb:BI2TE, tdb:BiTe-24Zho.tdb:BI2TE
### TDB models of BI2TE (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): BI2TE, type code %, sha256 `e62921a019778da4…`
~~~~text
67: PHASE BI2TE % 2 2 1 !
68: CONST BI2TE : BI : TE : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): BI2TE, type code %, sha256 `48a482c6fa140bba…`
~~~~text
59: PHASE BI2TE % 2 2 1 !
60: CONST BI2TE : BI : TE : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): BI2TE, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
69: PHASE BI2TE % 2 2 1 !
70: CONST BI2TE : BI : TE : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BI2TE, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
63: PHASE BI2TE % 2 2 1 !
64: CONST BI2TE : BI : TE : !
~~~~
Example references (7 of 7; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase; cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models 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:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_cited as the source of values for this phase_
- [doi:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
## BI2TE3_C33 (Bi–Te)
- Id: `phase:bi-te:bi2te3-c33`; status `assigned`
- Structure: Bi2Te3 · C33 · hR5 · R-3m (166); type `st:c33-bi2te3-hr5`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in BiTe-18Gie.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in BiTe-23Drz.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in BiTe-24Zho.tdb also describes the disordered state
- Stability: stable in 4 of 4 calculated diagram(s): 300–860.19 K, x(Te) 0.59625–0.60707
- Literature: 30 values (30 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bi2te3-c33)
Names (7): _corpus: _corpus:phase:bi-te:bi2te3-c33
_paper: _paper:10.1007/s11669-023-01049-9:Bi2Te3, paper:10.1007/s11669-024-01093-z:Bi2Te3
_tdb: _tdb:BiTe-18Gie.tdb:BI2TE3_C33, tdb:BiTe-18Mao.tdb:BI2TE3_C33, tdb:BiTe-23Drz.tdb:BI2TE3_C33, tdb:BiTe-24Zho.tdb:BI2TE3_C33
### TDB models of BI2TE3_C33 (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): BI2TE3_C33, type code %, sha256 `e62921a019778da4…`
~~~~text
82: PHASE BI2TE3_C33 % 2 2 3 !
83: CONST BI2TE3_C33 : BI% TE : BI TE% : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): BI2TE3_C33, type code %, sha256 `48a482c6fa140bba…`
~~~~text
74: PHASE BI2TE3_C33 % 2 2 3 !
75: CONST BI2TE3_C33 : BI : TE : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): BI2TE3_C33, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
79: PHASE BI2TE3_C33 % 2 2 3 !
80: CONST BI2TE3_C33 : BI% TE : BI TE% : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BI2TE3_C33, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
88: PHASE BI2TE3_C33 % 2 2 3 !
89: CONST BI2TE3_C33 : BI% TE : BI TE% : !
~~~~
Example references (9 of 9; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase; cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models this phase_
- [doi:10.1149/1.2423400](https://doi.org/10.1149/1.2423400) A.C. Glatz, An Evaluation of the Bismuth-Tellurium Phase System, J. Electrochem. Soc., 1965, 112, p 1204–1207.
_cited as the source of values for this phase_
- [doi:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_cited as the source of values for this phase_
- [doi:10.1021/j100849a043](https://doi.org/10.1021/j100849a043) Robert F. Brebrick, Tellurium vapor pressure and optical density at 370-615.degree., J. Phys. Chem. 72, 1032-1036 (1968).
_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:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
## BI4TE3 (Bi–Te)
- Id: `phase:bi-te:bi4te3`; 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_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Bi 0.5714, Te 0.4286
- Stability: stable in 3 of 3 calculated diagram(s): 300–725.96 K, x(Te) 0.42857–0.42857
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bi4te3)
Names (5): _corpus: _corpus:phase:bi-te:bi4te3
_paper: _paper:10.1007/s11669-024-01093-z:Bi4Te3
_tdb: _tdb:BiTe-18Gie.tdb:BI4TE3, tdb:BiTe-18Mao.tdb:BI4TE3, tdb:BiTe-24Zho.tdb:BI4TE3
### TDB models of BI4TE3 (3): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): BI4TE3, type code %, sha256 `e62921a019778da4…`
~~~~text
72: PHASE BI4TE3 % 2 4 3 !
73: CONST BI4TE3 : BI : TE : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): BI4TE3, type code %, sha256 `48a482c6fa140bba…`
~~~~text
64: PHASE BI4TE3 % 2 4 3 !
65: CONST BI4TE3 : BI : TE : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BI4TE3, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
68: PHASE BI4TE3 % 2 4 3 !
69: CONST BI4TE3 : BI : TE : !
~~~~
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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models 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:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
## BI4TE5 (Bi–Te)
- Id: `phase:bi-te:bi4te5`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (literature_printed): (Bi4Te5) · hP\* — printed with a label mapped to this phase
- Candidate (sgte_mmc2): (Bi4Te5) · P-3m1 (164) — Hallstedt 2025 mmc2 row for BI4TE5: Bi4Te5
- Stoichiometry: Bi 0.4444, Te 0.5556
- Stability: stable in 1 of 1 calculated diagram(s): 300–833.61 K, x(Te) 0.55556–0.55556
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bi4te5)
Names (3): _corpus: _corpus:phase:bi-te:bi4te5
_paper: _paper:10.1007/s11669-024-01093-z:Bi4Te5
_tdb: _tdb:BiTe-24Zho.tdb:BI4TE5
### TDB models of BI4TE5 (1): PHASE and CONSTITUENT statements as written
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BI4TE5, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
83: PHASE BI4TE5 % 2 4 5 !
84: CONST BI4TE5 : BI : TE : !
~~~~
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:10.1007/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:10.1107/s0021889868005406](https://doi.org/10.1107/s0021889868005406) R. F. Brebrick, Characterization of phases in the 50–60 at. % Te region of the Bi–Te system by X-ray powder diffraction patterns, J Appl Crystallogr 1, 241-246 (1968).
_cited as the source of values for this phase_
## BI7TE3 (Bi–Te)
- Id: `phase:bi-te:bi7te3`; status `assigned`
- Structure: Sb8Te3 · hR11 · R-3m (166); type `st:sb8te3-hr11`; 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 0.7000, Te 0.3000
- Stability: stable in 2 of 2 calculated diagram(s): 300–604.83 K, x(Te) 0.3–0.3
- Literature: 21 values (21 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bi7te3)
Names (5): _corpus: _corpus:phase:bi-te:bi7te3
_paper: _paper:10.1007/s11669-023-01049-9:Bi7Te3, paper:10.1007/s11669-024-01093-z:Bi7Te3
_tdb: _tdb:BiTe-23Drz.tdb:BI7TE3, tdb:BiTe-24Zho.tdb:BI7TE3
### TDB models of BI7TE3 (2): PHASE and CONSTITUENT statements as written
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): BI7TE3, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
64: PHASE BI7TE3 % 2 7 3 !
65: CONST BI7TE3 : BI : TE : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BI7TE3, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
58: PHASE BI7TE3 % 2 7 3 !
59: CONST BI7TE3 : BI : TE : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [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/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:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_cited as the source of values for this phase_
- [doi:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
- [doi:10.1149/1.2423400](https://doi.org/10.1149/1.2423400) A.C. Glatz, An Evaluation of the Bismuth-Tellurium Phase System, J. Electrochem. Soc., 1965, 112, p 1204–1207.
_cited as the source of values for this phase_
## BI8TE9 (Bi–Te)
- Id: `phase:bi-te:bi8te9`; 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, Te 0.5294
- Stability: stable in 1 of 1 calculated diagram(s): 300–822.75 K, x(Te) 0.52941–0.52941
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bi8te9)
Names (3): _corpus: _corpus:phase:bi-te:bi8te9
_paper: _paper:10.1007/s11669-024-01093-z:Bi8Te9
_tdb: _tdb:BiTe-24Zho.tdb:BI8TE9
### TDB models of BI8TE9 (1): PHASE and CONSTITUENT statements as written
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BI8TE9, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
78: PHASE BI8TE9 % 2 8 9 !
79: CONST BI8TE9 : BI : TE : !
~~~~
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:10.1007/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:10.1016/0025-5408(93)90055-i](https://doi.org/10.1016/0025-5408%2893%2990055-i) Y. Feutelais, B. Legendre, N. Rodier, V. Agafonov, A study of the phases in the bismuth - tellurium system, Materials Research Bulletin 28, 591-596 (1993).
_cited as the source of values for this phase_
## BITE (Bi–Te)
- Id: `phase:bi-te:bite`; status `needs_review`
- No structure assigned. Why: assessment_declared_compound_differs_from_site_ratios; no_structure_token; off_stoichiometric_model
- Candidate (dft_mp): R-3m (166) — on-hull MP Bi4Te3 at x(TE)=0.4286
- Candidate (dft_oqmd): P-3m1 (164) — on-hull OQMD Bi2 Te1 at x(TE)=0.3333
- Candidate (literature_printed): BiSe · hP12 — printed with a label mapped to this phase
- Candidate (sgte_mmc2): BiSe · hP12 · P-3m1 (164) — Hallstedt 2025 mmc2 row for BITE: BiTe
- Candidate (tdb_comment): BiSe · hP12 · P-3m1 — BiTe-18Gie.tdb: 'Prototype BiSe (hP12, P-3m1), beta'
- Candidate (tdb_comment): BiSe · hP12 · P-3m1 — BiTe-18Mao.tdb: 'Prototype BiSe (hP12, P-3m1), beta'
- Candidate (tdb_comment): BiSe · hP12 · P-3m1 — BiTe-23Drz.tdb: 'Prototype BiSe (hP12, P-3m1), beta'
- Candidate (tdb_comment): BiSe · hP12 · P-3m1 — BiTe-24Zho.tdb: 'Prototype BiSe (hP12, P-3m1)'
- Stability: stable in 4 of 4 calculated diagram(s): 300–832.68 K, x(Te) 0.27635–0.56605
- Literature: 25 values (25 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:bite)
Names (7): _corpus: _corpus:phase:bi-te:bite
_paper: _paper:10.1007/s11669-023-01049-9:BiTe, paper:10.1007/s11669-024-01093-z:BiTe
_tdb: _tdb:BiTe-18Gie.tdb:BITE, tdb:BiTe-18Mao.tdb:BITE, tdb:BiTe-23Drz.tdb:BITE, tdb:BiTe-24Zho.tdb:BITE
### TDB models of BITE (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): BITE, type code %, sha256 `e62921a019778da4…`
~~~~text
77: PHASE BITE % 2 2 3 !
78: CONST BITE : BI : BI TE% : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): BITE, type code %, sha256 `48a482c6fa140bba…`
~~~~text
69: PHASE BITE % 2 2 3 !
70: CONST BITE : BI : BI TE : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): BITE, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
74: PHASE BITE % 2 2 3 !
75: CONST BITE : BI : BI TE% : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): BITE, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
73: PHASE BITE % 2 1 1 !
74: CONST BITE : BI : TE : !
~~~~
Example references (9 of 9; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; reports values for this phase_
- [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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase; cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models 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:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_cited as the source of values for this phase_
- [doi:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
- [doi:10.1021/j100849a043](https://doi.org/10.1021/j100849a043) Robert F. Brebrick, Tellurium vapor pressure and optical density at 370-615.degree., J. Phys. Chem. 72, 1032-1036 (1968).
_cited as the source of values for this phase_
- [doi:10.1149/1.2423400](https://doi.org/10.1149/1.2423400) A.C. Glatz, An Evaluation of the Bismuth-Tellurium Phase System, J. Electrochem. Soc., 1965, 112, p 1204–1207.
_cited as the source of values for this phase_
## FCC_A1 (Bi–Te)
- Id: `phase:bi-te: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-te:fcc-a1)
Names (5): _corpus: _corpus:phase:bi-te:fcc-a1
_tdb: _tdb:BiTe-18Gie.tdb:FCC_A1, tdb:BiTe-18Mao.tdb:FCC_A1, tdb:BiTe-23Drz.tdb:FCC_A1, tdb:BiTe-24Zho.tdb:FCC_A1
### TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): FCC_A1, type code %A, sha256 `e62921a019778da4…`
~~~~text
40: PHASE FCC_A1 %A 2 1 1 !
41: CONST FCC_A1 : BI : VA : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): FCC_A1, type code %A, sha256 `48a482c6fa140bba…`
~~~~text
32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : BI : VA : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): FCC_A1, type code %A, sha256 `f0f0bd5a3c792778…`
~~~~text
37: PHASE FCC_A1 %A 2 1 1 !
38: CONST FCC_A1 : BI : VA : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): FCC_A1, type code %A, sha256 `2cbb5fbf130932bd…`
~~~~text
31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : BI : VA : !
~~~~
Example references (4 of 4; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase_
- [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.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models this phase_
## HCP_A3 (Bi–Te)
- Id: `phase:bi-te: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-te:hcp-a3)
Names (5): _corpus: _corpus:phase:bi-te:hcp-a3
_tdb: _tdb:BiTe-18Gie.tdb:HCP_A3, tdb:BiTe-18Mao.tdb:HCP_A3, tdb:BiTe-23Drz.tdb:HCP_A3, tdb:BiTe-24Zho.tdb:HCP_A3
### TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): HCP_A3, type code %A, sha256 `e62921a019778da4…`
~~~~text
50: PHASE HCP_A3 %A 2 1 0.5 !
51: CONST HCP_A3 : BI : VA: !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): HCP_A3, type code %A, sha256 `48a482c6fa140bba…`
~~~~text
42: PHASE HCP_A3 %A 2 1 0.5 !
43: CONST HCP_A3 : BI : VA: !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): HCP_A3, type code %A, sha256 `f0f0bd5a3c792778…`
~~~~text
47: PHASE HCP_A3 %A 2 1 0.5 !
48: CONST HCP_A3 : BI : VA: !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): HCP_A3, type code %A, sha256 `2cbb5fbf130932bd…`
~~~~text
41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : BI : VA: !
~~~~
Example references (4 of 4; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase_
- [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.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models this phase_
## LIQUID (Bi–Te)
- Id: `phase:bi-te:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 536.46–2500 K, x(Te) 0–1
- Literature: 54 values (54 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-te:liquid)
Names (7): _corpus: _corpus:phase:bi-te:liquid
_paper: _paper:10.1007/s11669-023-01049-9:L, paper:10.1007/s11669-024-01093-z:Liquid
_tdb: _tdb:BiTe-18Gie.tdb:LIQUID, tdb:BiTe-18Mao.tdb:LIQUID, tdb:BiTe-23Drz.tdb:LIQUID, tdb:BiTe-24Zho.tdb:LIQUID
### TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written
[BiTe-18Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Gie.tdb): LIQUID, type code %, sha256 `e62921a019778da4…`
~~~~text
35: PHASE LIQUID:L % 1 1 !
36: CONST LIQUID:L : BI BI2TE3 TE : !
~~~~
[BiTe-18Mao.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-18Mao.tdb): LIQUID, type code %, sha256 `48a482c6fa140bba…`
~~~~text
27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : BI TE : !
~~~~
[BiTe-23Drz.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-23Drz.tdb): LIQUID, type code %, sha256 `f0f0bd5a3c792778…`
~~~~text
32: PHASE LIQUID:L % 1 1 !
33: CONST LIQUID:L : BI BI2TE3 TE : !
~~~~
[BiTe-24Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/BiTe-24Zho.tdb): LIQUID, type code %, sha256 `2cbb5fbf130932bd…`
~~~~text
26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : BI BI2TE3 TE : !
~~~~
Example references (9 of 9; assessments first):
- [doi:10.1007/s11669-023-01049-9](https://doi.org/10.1007/s11669-023-01049-9) S. Drzewowska, B. Onderka, Different Approach to Thermodynamic Description of Bi-Te Binary System, J. Phase Equilib. Diffus. 44, 429-444 (2023).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [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.calphad.2017.11.007](https://doi.org/10.1016/j.calphad.2017.11.007) C. Mao, M. Tan, L. Zhang, D. Wu, W. Bai, and L. Liu, Experimental Reinvestigation and Thermodynamic Description of Bi-Te Binary System, Calphad, 2018, 60, p 81–89.
_assessment that models this phase; cited as the source of values for this phase_
- [doi:10.1016/j.calphad.2018.08.005](https://doi.org/10.1016/j.calphad.2018.08.005) W. Gierlotka, Calphad, 63, 6-11(2018).
_assessment that models 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:10.1007/978-1-4899-6373-4](https://doi.org/10.1007/978-1-4899-6373-4) Nikolai Khrisanfovich Abrikosov, V. F. Bankina, L. V. Poretskaya, L. E. Shelimova, E. V. Skudnova, Semiconducting II–VI, IV–VI, and V–VI Compounds, (1969).
_cited as the source of values for this phase_
- [doi:10.1149/1.2423400](https://doi.org/10.1149/1.2423400) A.C. Glatz, An Evaluation of the Bismuth-Tellurium Phase System, J. Electrochem. Soc., 1965, 112, p 1204–1207.
_cited as the source of values for this phase_
- [doi:10.1107/s0567740879002788](https://doi.org/10.1107/s0567740879002788) K. Yamana, K. Kihara, T. Matsumoto, Bismuth tellurides: BiTe and Bi\4\Te\3\, Acta Crystallogr B Struct Sci 35, 147-149 (1979).
_cited as the source of values for this phase_
- [doi:10.1021/j100849a043](https://doi.org/10.1021/j100849a043) Robert F. Brebrick, Tellurium vapor pressure and optical density at 370-615.degree., J. Phys. Chem. 72, 1032-1036 (1968).
_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).