SrTe: enthalpy of formation
5 accepted literature formation-enthalpy value(s) (model 1, DFT 4); Materials Project -188.541 kJ/mol-atom (mp-aaaaacxi); OQMD -168.527 kJ/mol-atom (oqmd-656717).
Systems: Sr–Te
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -168 kJ/mol-atom | SrTe | 298.15 | model | CALPHAD | Sr–Te | [1] Yu 2022 | Table 2, p. 5, row 23 report | |
| -187.88 kJ/mol-atom | SrTe | 0 | DFT | First-principles | Sr–Te | [1] Yu 2022 cites Jain 2013 doi | Table 2, p. 5, row 22 report | |
| -174 kJ/mol-atom | SrTe | 0 | DFT | First-principles | Sr–Te | [1] Yu 2022 cites Labidi 2008 | Table 2, p. 5, row 20 report | |
| -167.98 kJ/mol-atom | SrTe | 0 | DFT | First-principles | Sr–Te | [1] Yu 2022 | Table 2, p. 5, row 19 report | |
| -167.97 kJ/mol-atom | SrTe | 0 | DFT | First-principles | Sr–Te | [1] Yu 2022 cites Saal 2013 doi | Table 2, p. 5, row 21 report |
Uncertainty budget
Components kept separate, in the value's unit (literature SCHEMA.md, UNCERTAINTY_CALIBRATION.md): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged.
| Value | Unit | Printed | Reading | Method (class, basis) | Composition | Scatter | Conversion | Effective |
|---|---|---|---|---|---|---|---|---|
| -168 | kJ/mol-atom | 0.5 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -187.88 | kJ/mol-atom | 0.005 | 9.966 (dft, calibrated) | 9.966 | ||||
| -174 | kJ/mol-atom | 0.5 | 9.966 (dft, calibrated) | 9.966 | ||||
| -167.98 | kJ/mol-atom | 0.005 | 9.966 (dft, calibrated) | 9.966 | ||||
| -167.97 | kJ/mol-atom | 0.005 | 9.966 (dft, calibrated) | 9.966 |
DFT formation energies
Lowest-energy entries at this composition. Materials Project and OQMD use different energy references and are never averaged. 1 eV/atom = 96.485 kJ/mol-atom.
| Source | Entry | kJ/mol-atom | eV/atom | Space group | E above hull (kJ/mol-atom) | E above hull (eV/atom) | Theoretical |
|---|---|---|---|---|---|---|---|
| Materials Project | mp-aaaaacxi | -188.541 | -1.9541 | Fm-3m | 0 | 0 | no |
| OQMD | oqmd-656717 | -168.527 | -1.74667 | Fm-3m | 0 | 0 | no |
DFT sources: A. Jain et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002. doi:10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501-1509; S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010. doi:10.1007/s11837-013-0755-4 (CC BY 4.0);
Sources
- 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