Abstract
Photoreflectance (PR) has been used for the first time for the measurement of the fundamental energy gaps of a narrow gap semiconductor (InAs) and demonstrated to be capable of determining both the bandgap and the spin-orbit split-off energy. The measurements reported in this paper give a value for the spin split-off energy for p-type InAs as 367 ±2 meV. The assignment of the feature to the spin split-off band is supported by the observation that this value is found to be independent of temperature.
| Original language | English |
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| Pages (from-to) | 1619-1624 |
| Number of pages | 6 |
| Journal | Semiconductor Science and Technology |
| Volume | 12 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Dec 1997 |