We study the hole subband non-parabolicities in undoped pseudomorphic Si/Si 1-x Ge x quantum wells, strained in the growth direction 100 . We solve exactly the multiband effective mass equation that describes the heavy, light and split-off hole valence bands. The symmetries of the Luttinger-Kohn Ham
Intersubband transitions in strained Si/Si1 − xGex/Si quantum wells
✍ Scribed by Georgios Hionis; Maria Tsetseri; Anna Zora; Georgios P. Triberis
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 151 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0749-6036
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✦ Synopsis
The energy subbands in pseudomorphic p-type Si/Si 1-x Ge x /Si quantum wells are calculated within the multiband effective-mass approximation that describes the heavy, light and split-off hole valence bands. We examine the intersubband transitions in this system and the selection rules are obtained for a light polarization vector parallel or perpendicular to the growth direction. Comparison is made with other theories and experiment.
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