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The various band gaps at zero pressure for K2SeBr6 and K2PtBr6.
| Material | EΓ-Γ | EΓ-X | EΓ-L | EX-X | EL-L |
|---|---|---|---|---|---|
| K2PBr6 | |||||
| E0 (eV) | 2.323 | 0.98 | 1.88 | 1.14 | 2.31 |
| α × 10–2 (eV/GPa) | − 9.94 | ||||
| β × 10–3 (eV/GPa2) | 2.8 | ||||
| K2SeBr6 | |||||
| E0 (eV) | 2.29 | 2.56 | 1.5 | 2.58 | 1.902 |
| α × 10–2 (eV/GPa) | − 7.09 | ||||
| β × 10–3 (eV/GPa2) | 1.56 |
