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

Accepted values by evidence class
Evidence classValues
experimental21
model36
DFT6
Accepted values by property group
Property groupValues
invariant reaction38
formation13
mixing / partial3
crystal structure9

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.

Assessments with a calculated phase diagram
TDB fileAssessmentSHA-256Links
GaTe-20Liu.tdbY. Liu, Z. Dou, M. Enoki, Y. Oyama, H. Ohtani, Calphad, 71, 102206(2020). doi:10.1016/j.calphad.2020.1022066e512eecdb14d34e77f3f8bd559aaccf17058dca0eb95efba3021e2c1328e7cfviewer · TDB · JSON
GaTe-22Yu.tdbS. 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-zd2acb81d4faa1adab2ede309038be5dc7c098e34fb43d59fc2bedbde8a612bc5viewer · TDB · JSON
GaTe-92Oh-LB.tdbC.-S. Oh, D.N. Lee, Calphad, 16, 317-30(1992). doi:10.1016/0364-5916(92)90029-W148eccd2bb30ba95a128081573c9de0ed6c5b240325f7995d3a184b8e401b924viewer · TDB · JSON
GaTe-92Oh-orig.tdbC.-S. Oh, D.N. Lee, Calphad, 16, 317-30(1992). doi:10.1016/0364-5916(92)90029-W0eb6105b80254fbf3219fd0381df5ba9d733f157d2bebc718d9516318499e9aeviewer · TDB · JSON
Calculated three-phase invariants (model, mole fraction of the second component)
TDB fileT (K)Phases at the invariant
GaTe-20Liu.tdb1057.16ION (x(Te) 0.56989) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.59994)
GaTe-20Liu.tdb1055.7GATE (x(Te) 0.5) + ION (x(Te) 0.56175) + GA3TE4 (x(Te) 0.57143)
GaTe-20Liu.tdb760.98GA2TE3_B3 (x(Te) 0.60018) + GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.86123)
GaTe-20Liu.tdb703.03GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.93369) + HEXAGONAL_A8 (x(Te) 1)
GaTe-20Liu.tdb677.14GA2TE3_B3 (x(Te) 0.60014) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1)
GaTe-20Liu.tdb302.91ORTHORHOMBIC_A11 (x(Te) 0) + ION (x(Te) 0) + GATE (x(Te) 0.5)
GaTe-22Yu.tdb1057.95LIQUID (x(Te) 0.57025) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.6)
GaTe-22Yu.tdb1057.19GATE (x(Te) 0.5) + LIQUID (x(Te) 0.56354) + GA3TE4 (x(Te) 0.57143)
GaTe-22Yu.tdb1019.16LIQUID#2 (x(Te) 0.09127) + LIQUID (x(Te) 0.31265) + GATE (x(Te) 0.5)
GaTe-22Yu.tdb760.8GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + LIQUID (x(Te) 0.84562)
GaTe-22Yu.tdb705.66GA2TE5 (x(Te) 0.71429) + LIQUID (x(Te) 0.90897) + HEXAGONAL_A8 (x(Te) 1)
GaTe-22Yu.tdb688.41GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1)
GaTe-22Yu.tdb302.91ORTHORHOMBIC_A11 (x(Te) 0) + LIQUID (x(Te) 0) + GATE (x(Te) 0.5)
GaTe-92Oh-LB.tdb1062.53ION (x(Te) 0.5693) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.6)
GaTe-92Oh-LB.tdb1061.16GATE (x(Te) 0.5) + ION (x(Te) 0.56108) + GA3TE4 (x(Te) 0.57143)
GaTe-92Oh-LB.tdb1014.61ION#2 (x(Te) 0.0877) + ION (x(Te) 0.30073) + GATE (x(Te) 0.5)
GaTe-92Oh-LB.tdb760.68GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.86079)
GaTe-92Oh-LB.tdb703.2GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.93921) + HEXAGONAL_A8 (x(Te) 1)
GaTe-92Oh-LB.tdb677GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1)
GaTe-92Oh-LB.tdb302.91ORTHORHOMBIC_A11 (x(Te) 0) + ION (x(Te) 0) + GATE (x(Te) 0.5)
GaTe-92Oh-orig.tdb1062.79ION (x(Te) 0.56951) + GA3TE4 (x(Te) 0.57143) + GA2TE3_B3 (x(Te) 0.6)
GaTe-92Oh-orig.tdb1061.47GATE (x(Te) 0.5) + ION (x(Te) 0.56132) + GA3TE4 (x(Te) 0.57143)
GaTe-92Oh-orig.tdb760.9GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.86183)
GaTe-92Oh-orig.tdb703.28GA2TE5 (x(Te) 0.71429) + ION (x(Te) 0.9375) + HEXAGONAL_A8 (x(Te) 1)
GaTe-92Oh-orig.tdb676.86GA2TE3_B3 (x(Te) 0.6) + GA2TE5 (x(Te) 0.71429) + HEXAGONAL_A8 (x(Te) 1)
GaTe-92Oh-orig.tdb302.91ORTHORHOMBIC_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)

Invariant reactions reported in the literature for the Ga–Te system (38)
T (K)Reaction / phasesCompositions (mole fraction)ClassSourceLocationQuote
1063L + Ga2Te3 -> Ga3Te4L: Te 0.57; Ga2Te3: Te 0.6; Ga3Te4: Te 0.571model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 18
report
1061eutectic: L -> GaTe + Ga3Te4L: Te 0.561; GaTe: Te 0.5; Ga3Te4: Te 0.571model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 14
report
1057.9L + Ga2Te3 -> Ga3Te4L: Te 0.57; Ga2Te3: Te 0.6; Ga3Te4: Te 0.571model[1] Yu 2022Table 5, p. 12, row 16
report
1057.2eutectic: L -> GaTe + Ga3Te4L: Te 0.564; GaTe: Te 0.5; Ga3Te4: Te 0.571model[1] Yu 2022Table 5, p. 12, row 12
report
1057L + Ga2Te3 -> Ga3Te4L: Te 0.57; Ga2Te3: Te 0.6; Ga3Te4: Te 0.571model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 17
report
1057L + Ga2Te3 -> Ga3Te4Ga2Te3: Ga 0.4, Te 0.6; Ga3Te4: Ga 0.428571, Te 0.571429experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 19
report
1056eutectic: L -> GaTe + Ga3Te4L: Te 0.562; GaTe: Te 0.5; Ga3Te4: Te 0.571model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 13
report
1049eutectic: L -> GaTe + Ga3Te4GaTe: Ga 0.5, Te 0.5; Ga3Te4: Ga 0.428571, Te 0.571429experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 15
report
1023monotectic: L2 -> L1 + GaTeGaTe: Ga 0.5, Te 0.5experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 8
report
1020monotectic: L2 -> L1 + GaTeL2: Te 0.295; L1: Te 0.075; GaTe: Te 0.5experimental[1] Yu 2022
cites Mouani 1995 doi
Table 5, p. 12, row 11
report
1019.2monotectic: L2 -> L1 + GaTeL2: Te 0.324; L1: Te 0.09; GaTe: Te 0.5model[1] Yu 2022Table 5, p. 12, row 5
report
1019monotectic: L2 -> L1 + GaTeGaTe: Ga 0.5, Te 0.5experimental[1] Yu 2022
cites Blachnik 1985 doi
Table 5, p. 12, row 9
report
1018monotectic: L2 -> L1 + GaTeL2: Te 0.3; L1: Te 0.09; GaTe: Te 0.5experimental[1] Yu 2022
cites Wobst 1971 doi
Table 5, p. 12, row 10
report
1015monotectic: L2 -> L1 + GaTeL2: Te 0.302; L1: Te 0.088; GaTe: Te 0.5model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 7
report
1015monotectic: L2 -> L1 + GaTeL2: Te 0.303; L1: Te 0.086; GaTe: Te 0.5model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 6
report
768L + Ga2Te3 -> Ga2Te5Ga2Te3: Ga 0.4, Te 0.6; Ga2Te5: Ga 0.285714, Te 0.714286experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 23
report
761L + Ga2Te3 -> Ga2Te5L: Te 0.862; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 22
report
761L + Ga2Te3 -> Ga2Te5Ga2Te3: Ga 0.4, Te 0.6; Ga2Te5: Ga 0.285714, Te 0.714286experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 24
report
761L + Ga2Te3 -> Ga2Te5L: Te 0.861; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 21
report
760.7L + Ga2Te3 -> Ga2Te5L: Te 0.845; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714model[1] Yu 2022Table 5, p. 12, row 20
report
757L + Ga2Te3 -> Ga2Te5Ga2Te3: Ga 0.4, Te 0.6; Ga2Te5: Ga 0.285714, Te 0.714286experimental[1] Yu 2022
cites Mouani 1995 doi
Table 5, p. 12, row 26
report
755L + Ga2Te3 -> Ga2Te5L: Te 0.78; Ga2Te3: Te 0.6; Ga2Te5: Te 0.714experimental[1] Yu 2022
cites Tschirner 1986
Table 5, p. 12, row 25
report
713eutectic: L -> Ga2Te5 + (Te)L: Te 0.9; Ga2Te5: Te 0.714; (Te): Te 1experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 30
report
709eutectic: L -> Ga2Te5 + (Te)Ga2Te5: Ga 0.285714, Te 0.714286experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 31
report
705.7eutectic: L -> Ga2Te5 + (Te)L: Te 0.909; Ga2Te5: Te 0.714; (Te): Te 1model[1] Yu 2022Table 5, p. 12, row 27
report
704eutectic: L -> Ga2Te5 + (Te)Ga2Te5: Ga 0.285714, Te 0.714286experimental[1] Yu 2022
cites Mouani 1995 doi
Table 5, p. 12, row 33
report
703eutectic: L -> Ga2Te5 + (Te)L: Te 0.9; Ga2Te5: Te 0.714; (Te): Te 1experimental[1] Yu 2022
cites Tschirner 1986
Table 5, p. 12, row 32
report
703eutectic: L -> Ga2Te5 + (Te)L: Te 0.934; Ga2Te5: Te 0.714; (Te): Te 1model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 28
report
703eutectic: L -> Ga2Te5 + (Te)L: Te 0.934; Ga2Te5: Te 0.714; (Te): Te 1model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 29
report
688.5Ga2Te5 -> Ga2Te3 + (Te)Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1model[1] Yu 2022Table 5, p. 12, row 34
report
684Ga2Te5 -> Ga2Te3 + (Te)Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1experimental[1] Yu 2022
cites Tschirner 1986
Table 5, p. 12, row 38
report
677Ga2Te5 -> Ga2Te3 + (Te)Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 36
report
677Ga2Te5 -> Ga2Te3 + (Te)Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 35
report
673Ga2Te5 -> Ga2Te3 + (Te)Ga2Te5: Te 0.714; Ga2Te3: Te 0.6; (Te): Te 1experimental[1] Yu 2022
cites Alapini 1979 doi
Table 5, p. 12, row 37
report
303eutectic: L -> (Ga) + GaTeL: Te 0; (Ga): Te 0; GaTe: Te 0.5model[1] Yu 2022
cites Oh 1992 doi
Table 5, p. 12, row 3
report
303eutectic: L -> (Ga) + GaTeGaTe: Ga 0.5, Te 0.5experimental[1] Yu 2022
cites Mouani 1995 doi
Table 5, p. 12, row 4
report
303eutectic: L -> (Ga) + GaTeL: Te 0; (Ga): Te 0; GaTe: Te 0.5model[1] Yu 2022
cites Liu 2020 doi
Table 5, p. 12, row 2
report
302.9eutectic: L -> (Ga) + GaTeL: Te 0; (Ga): Te 0; GaTe: Te 0.5model[1] Yu 2022Table 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.

Enthalpies of formation, Ga–Te system (13)
PhaseCompoundValueT (K)ClassMP DFT (kJ/mol-atom)OQMD DFT (kJ/mol-atom)SourceLocationQuote
Ga2Te3Ga2Te3-39.8 kJ/mol-atom298.15experimental-55.499 (mp-aaaacfqw)-30.03 (oqmd-2169177)[1] Yu 2022
cites Said 1979 doi
Table 2, p. 5, row 10
report
Ga2Te3Ga2Te3-38.6 kJ/mol-atom298.15experimental-55.499 (mp-aaaacfqw)-30.03 (oqmd-2169177)[1] Yu 2022
cites Said 1979 doi
Table 2, p. 5, row 9
report
Ga2Te3Ga2Te3-38.194 kJ/mol-atom298.15model-55.499 (mp-aaaacfqw)-30.03 (oqmd-2169177)[1] Yu 2022Table 2, p. 5, row 8
report
Ga2Te3-35.511 kJ/mol-atom0DFT[1] Yu 2022Table 2, p. 5, row 6
report
Ga2Te3-29.99 kJ/mol-atom0DFT[1] Yu 2022
cites Saal 2013 doi
Table 2, p. 5, row 7
report
Ga2Te5-22.85 kJ/mol-atom0DFT[1] Yu 2022Table 2, p. 5, row 11
report
Ga2Te5-22.76 kJ/mol-atom0DFT[1] Yu 2022
cites Saal 2013 doi
Table 2, p. 5, row 12
report
Ga2Te5Ga2Te5-22.495 kJ/mol-atom298.15model-52.205 (mp-aaaaadnf)-23.361 (oqmd-1822539)[1] Yu 2022Table 2, p. 5, row 13
report
GaTeGaTe-39.4 kJ/mol-atom298.15experimental-55.488 (mp-aaaaaouz)-35.037 (oqmd-19721)[1] Yu 2022
cites Said 1979 doi
Table 2, p. 5, row 5
report
GaTeGaTe-39.268 kJ/mol-atom298.15model-55.488 (mp-aaaaaouz)-35.037 (oqmd-19721)[1] Yu 2022Table 2, p. 5, row 3
report
GaTeGaTe-39 kJ/mol-atom298.15experimental-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-atom0DFT[1] Yu 2022
cites Saal 2013 doi
Table 2, p. 5, row 2
report
GaTe-30.788 kJ/mol-atom0DFT[1] Yu 2022Table 2, p. 5, row 1
report

Other properties

Mixing / partial (3)

Mixing / partial, Ga–Te system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Enthalpy of mixing
printed: AIP'x
-37 kJ/mol (basis unstated)1130model[2] Chang-Seok 1992p. 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)1230model[2] Chang-Seok 1992p. 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)1233model[1] Yu 2022p. 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)

Crystal structure, Ga–Te system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Lattice a5.89 Å298.15Ga2Te3
alloy: Ga 0.4, Te 0.6
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 3
report
Lattice a6.683 Å298.15Ga2Te5
alloy: Ga 0.285714, Te 0.714286
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 4
report
Lattice a9.078 Å298.15GaTe
alloy: Ga 0.5, Te 0.5
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 1
report
Lattice b5.89 Å298.15Ga2Te3
alloy: Ga 0.4, Te 0.6
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 3
report
Lattice b6.683 Å298.15Ga2Te5
alloy: Ga 0.285714, Te 0.714286
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 4
report
Lattice b9.078 Å298.15GaTe
alloy: Ga 0.5, Te 0.5
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 1
report
Lattice c5.89 Å298.15Ga2Te3
alloy: Ga 0.4, Te 0.6
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 3
report
Lattice c6.683 Å298.15Ga2Te5
alloy: Ga 0.285714, Te 0.714286
model[1] Yu 2022
cites Villars 1991
Table 1, p. 3, row 4
report
Lattice c10.618 Å298.15GaTe
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).

  1. 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
  2. Oh Chang-Seok, Lee Dong Nyung, Thermodynamic assessment of the GaTe system, Calphad 16, 317-330 (1992). doi:10.1016/0364-5916(92)90029-w