Pt–Te phases

9 phases (tier A 5, tier C 3, liquid 1); 7 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Pt–Te system page · Markdown · field reference

Phases of the Pt–Te system (9)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
HEXAGONAL_A8 phase:pt-te:a8-hexagonal	gamma-Se · A8 · hP3 · P3_121 (152)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2499.89 K, x(Te) 1–1	2	1
BCC_A2 phase:pt-te:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
FCC_A1 phase:pt-te:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2088.87 K, x(Te) 0–0	2	1
HCP_A3 phase:pt-te:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
LIQUID phase:pt-te:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 719.89–2500 K, x(Te) 0–1	10	1
PT2TE3 phase:pt-te:pt2te3	Pt2Te3 · hR10 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–934.55 K, x(Te) 0.6–0.6	4	1
PT3TE4 phase:pt-te:pt3te4	Pt3Te4 · hR7 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1292.61 K, x(Te) 0.57143–0.57143	8	1
PTTE phase:pt-te:ptte	ZrCl · hR4 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1208.04 K, x(Te) 0.5–0.5	6	1
PTTE2_C6 phase:pt-te:ptte2-c6	CdI2 · C6 · hP3 · P-3m1 (164)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1423.73 K, x(Te) 0.66667–0.66667	8	1

HEXAGONAL_A8 (Pt–Te)

Id: phase:pt-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 1 of 1 calculated diagram(s): 300–2499.89 K, x(Te) 1–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:pt-te:a8-hexagonal, corpus:phase:pt-te:hexagonal-a8
paper: paper:10.1007/s11664-015-3676-x:hex(Te)
tdb: tdb:PtTe-15Guo.tdb:HEXAGONAL_A8

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

PtTe-15Guo.tdb: HEXAGONAL_A8, type code %, sha256 e561265cc2accdd0…

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

Example references (2 of 2; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
cited as the source of values for this phase

BCC_A2 (Pt–Te)

Id: phase:pt-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: Pt 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:pt-te:bcc-a2
tdb: tdb:PtTe-15Guo.tdb:BCC_A2

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

PtTe-15Guo.tdb: BCC_A2, type code %B, sha256 e561265cc2accdd0…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : PT : VA : !

Example references (1 of 1; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase

FCC_A1 (Pt–Te)

Id: phase:pt-te:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–2088.87 K, x(Te) 0–0
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:pt-te:fcc-a1
paper: paper:10.1007/s11664-015-3676-x:fcc(Pt)
tdb: tdb:PtTe-15Guo.tdb:FCC_A1

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

PtTe-15Guo.tdb: FCC_A1, type code %A, sha256 e561265cc2accdd0…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : PT% TE : VA : !

Example references (2 of 2; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
cited as the source of values for this phase

HCP_A3 (Pt–Te)

Id: phase:pt-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: Pt 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:pt-te:hcp-a3
tdb: tdb:PtTe-15Guo.tdb:HCP_A3

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

PtTe-15Guo.tdb: HCP_A3, type code %A, sha256 e561265cc2accdd0…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : PT : VA : !

Example references (1 of 1; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase

LIQUID (Pt–Te)

Id: phase:pt-te:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 719.89–2500 K, x(Te) 0–1
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:pt-te:liquid
paper: paper:10.1007/s11664-015-3676-x:liquid
tdb: tdb:PtTe-15Guo.tdb:LIQUID

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

PtTe-15Guo.tdb: LIQUID, type code %, sha256 e561265cc2accdd0…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : PT PTTE2 TE : !

Example references (2 of 2; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
cited as the source of values for this phase

PT2TE3 (Pt–Te)

Id: phase:pt-te:pt2te3; status assigned
Structure: Pt2Te3 · hR10 · R-3m (166); type st:pt2te3-hr10; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Pt 0.4000, Te 0.6000
Stability: stable in 1 of 1 calculated diagram(s): 300–934.55 K, x(Te) 0.6–0.6
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:pt-te:pt2te3
paper: paper:10.1007/s11664-015-3676-x:Pt2Te3
tdb: tdb:PtTe-15Guo.tdb:PT2TE3

TDB models of PT2TE3 (1): PHASE and CONSTITUENT statements as written

PtTe-15Guo.tdb: PT2TE3, type code %, sha256 e561265cc2accdd0…

64: PHASE PT2TE3 % 2 2 3 !
65: CONST PT2TE3 : PT : TE : !

Example references (3 of 3; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
cited as the source of values for this phase
doi:10.1016/s0925-8388(98)00948-7 Won-Sa Kim, Isothermal section of the Pt–Sb–Te system at 800°C, Journal of Alloys and Compounds 284, 218-221 (1999).
cited as the source of values for this phase

PT3TE4 (Pt–Te)

Id: phase:pt-te:pt3te4; status assigned
Structure: Pt3Te4 · hR7 · R-3m (166); type st:pt3te4-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
Caveat: not certain from the name or DFT alone (dft_space_group_166_matches_6_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Pt 0.4286, Te 0.5714
Stability: stable in 1 of 1 calculated diagram(s): 300–1292.61 K, x(Te) 0.57143–0.57143
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:pt-te:pt3te4
paper: paper:10.1007/s11664-015-3676-x:Pt3Te4
tdb: tdb:PtTe-15Guo.tdb:PT3TE4

TDB models of PT3TE4 (1): PHASE and CONSTITUENT statements as written

PtTe-15Guo.tdb: PT3TE4, type code %, sha256 e561265cc2accdd0…

59: PHASE PT3TE4 % 2 3 4 !
60: CONST PT3TE4 : PT : TE : !

Example references (3 of 3; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
cited as the source of values for this phase
doi:10.1016/s0925-8388(98)00948-7 Won-Sa Kim, Isothermal section of the Pt–Sb–Te system at 800°C, Journal of Alloys and Compounds 284, 218-221 (1999).
cited as the source of values for this phase

PTTE (Pt–Te)

Id: phase:pt-te:ptte; status assigned
Structure: ZrCl · hR4 · R-3m (166); type st:zrcl-hr4; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Pt 0.5000, Te 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–1208.04 K, x(Te) 0.5–0.5
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:pt-te:ptte
paper: paper:10.1007/s11664-015-3676-x:PtTe
tdb: tdb:PtTe-15Guo.tdb:PTTE

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

PtTe-15Guo.tdb: PTTE, type code %, sha256 e561265cc2accdd0…

54: PHASE PTTE % 2 1 1 !
55: CONST PTTE : PT : TE : !

Example references (3 of 3; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
cited as the source of values for this phase
doi:10.1016/s0925-8388(96)02709-0 Won-Sa Kim, Solid state phase equilibria in the Pt–Sb–Te system, Journal of Alloys and Compounds 252, 166-171 (1997).
cited as the source of values for this phase

PTTE2_C6 (Pt–Te)

Id: phase:pt-te:ptte2-c6; status assigned
Structure: CdI2 · C6 · hP3 · P-3m1 (164); type st:c6-cdi2-hp3; tier A: standard phase name; confidence high
Stoichiometry: Pt 0.3333, Te 0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–1423.73 K, x(Te) 0.66667–0.66667
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:pt-te:ptte2-c6
paper: paper:10.1007/s11664-015-3676-x:PtTe2
tdb: tdb:PtTe-15Guo.tdb:PTTE2_C6

TDB models of PTTE2_C6 (1): PHASE and CONSTITUENT statements as written

PtTe-15Guo.tdb: PTTE2_C6, type code %, sha256 e561265cc2accdd0…

69: PHASE PTTE2_C6 % 2 1 2 !
70: CONST PTTE2_C6 : PT : TE : !

Example references (2 of 2; assessments first):

doi:10.1007/s11664-015-3676-x Cuiping Guo, Liang Huang, Changrong Li, Shunli Shang, Zhenmin Du, Thermodynamic Modeling of the Pt-Te and Pt-Sb-Te Systems, Journal of Elec Materi 44, 2638-2650 (2015).
assessment that models this phase; reports values for this phase
doi:10.1007/bf03025941 Won-Sa Kim, Re-investigation of the phase constitution of the system Pt-Te, Metals and Materials 2, 9-14 (1996).
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). doi: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). doi: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.

@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}
}