The use of Raman scattering in different polarization geometries makes it possible to observe the splitting of transverse optical (TO) phonon modes confined in GaAs/AlAs superlattices grown on faceted GaAs (311)A surfaces. The frequencies of TO modes with atomic displacements in the direction along
✦ LIBER ✦
Folded acoustic phonons in GaAs/AlAs superlattices grown on non-(100)-oriented surfaces
✍ Scribed by J. Spitzer; Z.V. Popović; T. Ruf; M. Cardona; R. Nötzel; K. Ploog
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 288 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0038-1101
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## Abstract The MBE growth of PbTe layers on GaAs (100) 2° off‐oriented substrates belongs to hard heteroepitaxy, because the two materials differ strongly in their lattice constants and, in addition, they also exhibit different crystal structures. Consequently, phases with different surface orient