Coherent oscillation of zone-folded phonons in GaAs-AlAs superlattices
β Scribed by Aishi Yamamoto; Tomobumi Mishina; Yasuaki Masumoto; Masaaki Nakayama
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 268 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0022-2313
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π SIMILAR VOLUMES
We present the first identification of the direct participation of the GaAs interface (IF) mode in the phonon-assisted recombinations from type-II GaAs/AlAs short-period superlattices (SPSL). This is achieved by utilizing a novel first-order resonant Raman process associated with the type-II X z -ba
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