Ga–Te system
63 accepted literature values from 2 paper(s) (experimental 21, model 36, DFT 6); 4 calculated phase diagram(s).
Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (8) · papers (bibliography) · Markdown
| Evidence class | Values |
|---|---|
| experimental | 21 |
| model | 36 |
| DFT | 6 |
| Property group | Values |
|---|---|
| invariant reaction | 38 |
| formation | 13 |
| mixing / partial | 3 |
| crystal structure | 9 |
Calculated phase diagrams
Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.
| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| GaTe-20Liu.tdb | Y. Liu, Z. Dou, M. Enoki, Y. Oyama, H. Ohtani, Calphad, 71, 102206(2020). doi:10.1016/j.calphad.2020.102206 | 6e512eecdb14d34e77f3f8bd559aaccf17058dca0eb95efba3021e2c1328e7cf | viewer · TDB · JSON |
| GaTe-22Yu.tdb | S. Yu, J. Wang, D. Cui, S. Chen, Q. Wu, Y. Du, J. Phase Equilib. Diffus., 43, 193-213(2022). doi:10.1007/s11669-022-00950-z | d2acb81d4faa1adab2ede309038be5dc7c098e34fb43d59fc2bedbde8a612bc5 | viewer · TDB · JSON |
| GaTe-92Oh-LB.tdb | C.-S. Oh, D.N. Lee, Calphad, 16, 317-30(1992). doi:10.1016/0364-5916(92)90029-W | 148eccd2bb30ba95a128081573c9de0ed6c5b240325f7995d3a184b8e401b924 | viewer · TDB · JSON |
| GaTe-92Oh-orig.tdb | C.-S. Oh, D.N. Lee, Calphad, 16, 317-30(1992). doi:10.1016/0364-5916(92)90029-W | 0eb6105b80254fbf3219fd0381df5ba9d733f157d2bebc718d9516318499e9ae | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| GaTe-20Liu.tdb | 1057.16 | ION (x(Te) 0.56989) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.59994) |
| GaTe-20Liu.tdb | 1055.7 | GATE (x(Te) 0.5) + ION (x(Te) 0.56175) + GA3TE4 (x(Te) 0.57143) |
| GaTe-20Liu.tdb | 760.98 | GA2TE3_B3 (x(Te) 0.60018) + GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.86123) |
| GaTe-20Liu.tdb | 703.03 | GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.93369) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-20Liu.tdb | 677.14 | GA2TE3_B3 (x(Te) 0.60014) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-20Liu.tdb | 302.91 | ORTHORHOMBIC_A11 (x(Te) 0) + ION (x(Te) 0) + GATE (x(Te) 0.5) |
| GaTe-22Yu.tdb | 1057.95 | LIQUID (x(Te) 0.57025) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.6) |
| GaTe-22Yu.tdb | 1057.19 | GATE (x(Te) 0.5) + LIQUID (x(Te) 0.56354) + GA3TE4 (x(Te) 0.57143) |
| GaTe-22Yu.tdb | 1019.16 | LIQUID#2 (x(Te) 0.09127) + LIQUID (x(Te) 0.31265) + GATE (x(Te) 0.5) |
| GaTe-22Yu.tdb | 760.8 | GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + LIQUID (x(Te) 0.84562) |
| GaTe-22Yu.tdb | 705.66 | GA2TE5 (x(Te) 0.71429) + LIQUID (x(Te) 0.90897) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-22Yu.tdb | 688.41 | GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-22Yu.tdb | 302.91 | ORTHORHOMBIC_A11 (x(Te) 0) + LIQUID (x(Te) 0) + GATE (x(Te) 0.5) |
| GaTe-92Oh-LB.tdb | 1062.53 | ION (x(Te) 0.5693) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.6) |
| GaTe-92Oh-LB.tdb | 1061.16 | GATE (x(Te) 0.5) + ION (x(Te) 0.56108) + GA3TE4 (x(Te) 0.57143) |
| GaTe-92Oh-LB.tdb | 1014.61 | ION#2 (x(Te) 0.0877) + ION (x(Te) 0.30073) + GATE (x(Te) 0.5) |
| GaTe-92Oh-LB.tdb | 760.68 | GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.86079) |
| GaTe-92Oh-LB.tdb | 703.2 | GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.93921) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-92Oh-LB.tdb | 677 | GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-92Oh-LB.tdb | 302.91 | ORTHORHOMBIC_A11 (x(Te) 0) + ION (x(Te) 0) + GATE (x(Te) 0.5) |
| GaTe-92Oh-orig.tdb | 1062.79 | ION (x(Te) 0.56951) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.6) |
| GaTe-92Oh-orig.tdb | 1061.47 | GATE (x(Te) 0.5) + ION (x(Te) 0.56132) + GA3TE4 (x(Te) 0.57143) |
| GaTe-92Oh-orig.tdb | 760.9 | GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.86183) |
| GaTe-92Oh-orig.tdb | 703.28 | GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.9375) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-92Oh-orig.tdb | 676.86 | GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1) |
| GaTe-92Oh-orig.tdb | 302.91 | ORTHORHOMBIC_A11 (x(Te) 0) + ION (x(Te) 0) + GATE (x(Te) 0.5) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull GaTe-20Liu · CALPHAD hull GaTe-92Oh-LB · CALPHAD hull GaTe-92Oh-orig
Invariant reactions (literature)
| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|
| 1063 | L + Ga2Te3 -> Ga3Te4 | L: Te 0.57; Ga2Te3: Te 0.6; Ga3Te4: Te 0.571 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 18 report | |
| 1061 | eutectic: L -> GaTe + Ga3Te4 | L: Te 0.561; GaTe: Te 0.5; Ga3Te4: Te 0.571 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 14 report | |
| 1057.9 | L + Ga2Te3 -> Ga3Te4 | L: Te 0.57; Ga2Te3: Te 0.6; Ga3Te4: Te 0.571 | model | [1] Yu 2022 | Table 5, p. 12, row 16 report | |
| 1057.2 | eutectic: L -> GaTe + Ga3Te4 | L: Te 0.564; GaTe: Te 0.5; Ga3Te4: Te 0.571 | model | [1] Yu 2022 | Table 5, p. 12, row 12 report | |
| 1057 | L + Ga2Te3 -> Ga3Te4 | L: Te 0.57; Ga2Te3: Te 0.6; Ga3Te4: Te 0.571 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 17 report | |
| 1057 | L + Ga2Te3 -> Ga3Te4 | Ga2Te3: Ga 0.4, Te 0.6; Ga3Te4: Ga 0.428571, Te 0.571429 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 19 report | |
| 1056 | eutectic: L -> GaTe + Ga3Te4 | L: Te 0.562; GaTe: Te 0.5; Ga3Te4: Te 0.571 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 13 report | |
| 1049 | eutectic: L -> GaTe + Ga3Te4 | GaTe: Ga 0.5, Te 0.5; Ga3Te4: Ga 0.428571, Te 0.571429 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 15 report | |
| 1023 | monotectic: L2 -> L1 + GaTe | GaTe: Ga 0.5, Te 0.5 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 8 report | |
| 1020 | monotectic: L2 -> L1 + GaTe | L2: Te 0.295; L1: Te 0.075; GaTe: Te 0.5 | experimental | [1] Yu 2022 cites Mouani 1995 doi | Table 5, p. 12, row 11 report | |
| 1019.2 | monotectic: L2 -> L1 + GaTe | L2: Te 0.324; L1: Te 0.09; GaTe: Te 0.5 | model | [1] Yu 2022 | Table 5, p. 12, row 5 report | |
| 1019 | monotectic: L2 -> L1 + GaTe | GaTe: Ga 0.5, Te 0.5 | experimental | [1] Yu 2022 cites Blachnik 1985 doi | Table 5, p. 12, row 9 report | |
| 1018 | monotectic: L2 -> L1 + GaTe | L2: Te 0.3; L1: Te 0.09; GaTe: Te 0.5 | experimental | [1] Yu 2022 cites Wobst 1971 doi | Table 5, p. 12, row 10 report | |
| 1015 | monotectic: L2 -> L1 + GaTe | L2: Te 0.302; L1: Te 0.088; GaTe: Te 0.5 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 7 report | |
| 1015 | monotectic: L2 -> L1 + GaTe | L2: Te 0.303; L1: Te 0.086; GaTe: Te 0.5 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 6 report | |
| 768 | L + Ga2Te3 -> Ga2Te5 | Ga2Te3: Ga 0.4, Te 0.6; Ga2Te5: Ga 0.285714, Te 0.714286 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 23 report | |
| 761 | L + Ga2Te3 -> Ga2Te5 | L: Te 0.862; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 22 report | |
| 761 | L + Ga2Te3 -> Ga2Te5 | Ga2Te3: Ga 0.4, Te 0.6; Ga2Te5: Ga 0.285714, Te 0.714286 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 24 report | |
| 761 | L + Ga2Te3 -> Ga2Te5 | L: Te 0.861; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 21 report | |
| 760.7 | L + Ga2Te3 -> Ga2Te5 | L: Te 0.845; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714 | model | [1] Yu 2022 | Table 5, p. 12, row 20 report | |
| 757 | L + Ga2Te3 -> Ga2Te5 | Ga2Te3: Ga 0.4, Te 0.6; Ga2Te5: Ga 0.285714, Te 0.714286 | experimental | [1] Yu 2022 cites Mouani 1995 doi | Table 5, p. 12, row 26 report | |
| 755 | L + Ga2Te3 -> Ga2Te5 | L: Te 0.78; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714 | experimental | [1] Yu 2022 cites Tschirner 1986 | Table 5, p. 12, row 25 report | |
| 713 | eutectic: L -> Ga2Te5 + (Te) | L: Te 0.9; Ga2Te5: Te 0.714; (Te): Te 1 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 30 report | |
| 709 | eutectic: L -> Ga2Te5 + (Te) | Ga2Te5: Ga 0.285714, Te 0.714286 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 31 report | |
| 705.7 | eutectic: L -> Ga2Te5 + (Te) | L: Te 0.909; Ga2Te5: Te 0.714; (Te): Te 1 | model | [1] Yu 2022 | Table 5, p. 12, row 27 report | |
| 704 | eutectic: L -> Ga2Te5 + (Te) | Ga2Te5: Ga 0.285714, Te 0.714286 | experimental | [1] Yu 2022 cites Mouani 1995 doi | Table 5, p. 12, row 33 report | |
| 703 | eutectic: L -> Ga2Te5 + (Te) | L: Te 0.9; Ga2Te5: Te 0.714; (Te): Te 1 | experimental | [1] Yu 2022 cites Tschirner 1986 | Table 5, p. 12, row 32 report | |
| 703 | eutectic: L -> Ga2Te5 + (Te) | L: Te 0.934; Ga2Te5: Te 0.714; (Te): Te 1 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 28 report | |
| 703 | eutectic: L -> Ga2Te5 + (Te) | L: Te 0.934; Ga2Te5: Te 0.714; (Te): Te 1 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 29 report | |
| 688.5 | Ga2Te5 -> Ga2Te3 + (Te) | Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1 | model | [1] Yu 2022 | Table 5, p. 12, row 34 report | |
| 684 | Ga2Te5 -> Ga2Te3 + (Te) | Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1 | experimental | [1] Yu 2022 cites Tschirner 1986 | Table 5, p. 12, row 38 report | |
| 677 | Ga2Te5 -> Ga2Te3 + (Te) | Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 36 report | |
| 677 | Ga2Te5 -> Ga2Te3 + (Te) | Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 35 report | |
| 673 | Ga2Te5 -> Ga2Te3 + (Te) | Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1 | experimental | [1] Yu 2022 cites Alapini 1979 doi | Table 5, p. 12, row 37 report | |
| 303 | eutectic: L -> (Ga) + GaTe | L: Te 0; (Ga): Te 0; GaTe: Te 0.5 | model | [1] Yu 2022 cites Oh 1992 doi | Table 5, p. 12, row 3 report | |
| 303 | eutectic: L -> (Ga) + GaTe | GaTe: Ga 0.5, Te 0.5 | experimental | [1] Yu 2022 cites Mouani 1995 doi | Table 5, p. 12, row 4 report | |
| 303 | eutectic: L -> (Ga) + GaTe | L: Te 0; (Ga): Te 0; GaTe: Te 0.5 | model | [1] Yu 2022 cites Liu 2020 doi | Table 5, p. 12, row 2 report | |
| 302.9 | eutectic: L -> (Ga) + GaTe | L: Te 0; (Ga): Te 0; GaTe: Te 0.5 | model | [1] Yu 2022 | Table 5, p. 12, row 1 report |
Formation enthalpies
Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.
| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|---|
| Ga2Te3 | Ga2Te3 | -39.8 kJ/mol-atom | 298.15 | experimental | -55.499 (mp-aaaacfqw) | -30.03 (oqmd-2169177) | [1] Yu 2022 cites Said 1979 doi | Table 2, p. 5, row 10 report | |
| Ga2Te3 | Ga2Te3 | -38.6 kJ/mol-atom | 298.15 | experimental | -55.499 (mp-aaaacfqw) | -30.03 (oqmd-2169177) | [1] Yu 2022 cites Said 1979 doi | Table 2, p. 5, row 9 report | |
| Ga2Te3 | Ga2Te3 | -38.194 kJ/mol-atom | 298.15 | model | -55.499 (mp-aaaacfqw) | -30.03 (oqmd-2169177) | [1] Yu 2022 | Table 2, p. 5, row 8 report | |
| Ga2Te3 | -35.511 kJ/mol-atom | 0 | DFT | [1] Yu 2022 | Table 2, p. 5, row 6 report | ||||
| Ga2Te3 | -29.99 kJ/mol-atom | 0 | DFT | [1] Yu 2022 cites Saal 2013 doi | Table 2, p. 5, row 7 report | ||||
| Ga2Te5 | -22.85 kJ/mol-atom | 0 | DFT | [1] Yu 2022 | Table 2, p. 5, row 11 report | ||||
| Ga2Te5 | -22.76 kJ/mol-atom | 0 | DFT | [1] Yu 2022 cites Saal 2013 doi | Table 2, p. 5, row 12 report | ||||
| Ga2Te5 | Ga2Te5 | -22.495 kJ/mol-atom | 298.15 | model | -52.205 (mp-aaaaadnf) | -23.361 (oqmd-1822539) | [1] Yu 2022 | Table 2, p. 5, row 13 report | |
| GaTe | GaTe | -39.4 kJ/mol-atom | 298.15 | experimental | -55.488 (mp-aaaaaouz) | -35.037 (oqmd-19721) | [1] Yu 2022 cites Said 1979 doi | Table 2, p. 5, row 5 report | |
| GaTe | GaTe | -39.268 kJ/mol-atom | 298.15 | model | -55.488 (mp-aaaaaouz) | -35.037 (oqmd-19721) | [1] Yu 2022 | Table 2, p. 5, row 3 report | |
| GaTe | GaTe | -39 kJ/mol-atom | 298.15 | experimental | -55.488 (mp-aaaaaouz) | -35.037 (oqmd-19721) | [1] Yu 2022 cites Said 1979 doi | Table 2, p. 5, row 4 report | |
| GaTe | -35 kJ/mol-atom | 0 | DFT | [1] Yu 2022 cites Saal 2013 doi | Table 2, p. 5, row 2 report | ||||
| GaTe | -30.788 kJ/mol-atom | 0 | DFT | [1] Yu 2022 | Table 2, p. 5, row 1 report |
Other properties
Mixing / partial (3)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Enthalpy of mixing printed: AIP'x | -37 kJ/mol (basis unstated) | 1130 | model | [2] Chang-Seok 1992 | p. 5 report | Calculated results show minimum points AIP'x= -37 IcJ,X,,- 0.59 and Ad" - -34 kJ, X,.= 0.58 at 1130 and 1230 K, respectively. | |
| Enthalpy of mixing printed: Ad" | -34 kJ/mol (basis unstated) | 1230 | model | [2] Chang-Seok 1992 | p. 5 report | Calculated results show minimum points AIP'x= -37 IcJ,X,,- 0.59 and Ad" - -34 kJ, X,.= 0.58 at 1130 and 1230 K, respectively. | |
| Enthalpy of mixing printed: enthalpy of mixing | -50 kJ/mol (basis unstated) | 1233 | model | [1] Yu 2022 | p. 11 report | Fitting this set of data requires a more negative enthalpy for all of the compounds and the calculated enthalpy of mixing decreases to -50 kJ/mol at 1233K at the composition of Ga2Te3, which is much lower than the experimental value reported by Irle et al.[21] |
Crystal structure (9)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Lattice a | 5.89 Å | 298.15 | Ga2Te3 alloy: Ga 0.4, Te 0.6 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 3 report | |
| Lattice a | 6.683 Å | 298.15 | Ga2Te5 alloy: Ga 0.285714, Te 0.714286 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 4 report | |
| Lattice a | 9.078 Å | 298.15 | GaTe alloy: Ga 0.5, Te 0.5 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 1 report | |
| Lattice b | 5.89 Å | 298.15 | Ga2Te3 alloy: Ga 0.4, Te 0.6 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 3 report | |
| Lattice b | 6.683 Å | 298.15 | Ga2Te5 alloy: Ga 0.285714, Te 0.714286 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 4 report | |
| Lattice b | 9.078 Å | 298.15 | GaTe alloy: Ga 0.5, Te 0.5 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 1 report | |
| Lattice c | 5.89 Å | 298.15 | Ga2Te3 alloy: Ga 0.4, Te 0.6 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 3 report | |
| Lattice c | 6.683 Å | 298.15 | Ga2Te5 alloy: Ga 0.285714, Te 0.714286 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 4 report | |
| Lattice c | 10.618 Å | 298.15 | GaTe alloy: Ga 0.5, Te 0.5 | model | [1] Yu 2022 cites Villars 1991 | Table 1, p. 3, row 1 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- Shangzhao Yu, Jiong Wang, Dongyu Cui, Shanxiong Chen, Qing Wu, Yong Du, Thermodynamic Modelling of the Te-X (X = Cu, Ga, Li, Sr) Systems, J. Phase Equilib. Diffus. 43, 193-213 (2022). doi:10.1007/s11669-022-00950-z
- Oh Chang-Seok, Lee Dong Nyung, Thermodynamic assessment of the GaTe system, Calphad 16, 317-330 (1992). doi:10.1016/0364-5916(92)90029-w