Te influence of atomic off-centering on the band gap (Eg) and band effective mass of L band
.
Atomic reciprocal displacement | |||||
---|---|---|---|---|---|
0.47 | 0.48 | 0.49 | 0.50 | ||
E g (eV) | GeTe | 0.597 | 0.531 | 0.491 | 0.479 |
SnTe | 0.259 | 0.223 | 0.171 | 0.1346 | |
PbTe | 0.463 | 0.426 | 0.385 | 0.3423 | |
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GeTe | 0.132 | 0.105 | 0.091 | 0.081 |
SnTe | 0.140 | 0.112 | 0.096 | 0.083 | |
PbTe | 0.356 | 0.249 | 0.184 | 0.153 |