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This article is cited in 10 scientific papers (total in 10 papers)
CONDENSED MATTER
Anisotropy of long-wavelength optical phonons in GaAs/AlAs superlattice
V. A. Volodinab, M. P. Sinyukovab a Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk
b Novosibirsk State University
Abstract:
The angular anisotropy of optical phonons in GaAs/AlAs (001) superlattices is investigated by Raman scattering spectroscopy. Scattering configurations allowed for phonons with wave vectors oriented along the superlattice layers and normally to them are used. For phonons localized in GaAs layers, the theoretically predicted mixing of the LO1 longitudinal modes with TO1 transverse modes in which atomic displacements occur along the normal to the superlattice is observed experimentally. These modes possess noticeable angular anisotropy. For transverse modes in which atoms move in the plane of the superlattice, the angular anisotropy is small.
Received: 06.03.2014
Citation:
V. A. Volodin, M. P. Sinyukov, “Anisotropy of long-wavelength optical phonons in GaAs/AlAs superlattice”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:7 (2014), 463–466; JETP Letters, 99:7 (2014), 396–399
Linking options:
https://www.mathnet.ru/eng/jetpl3704 https://www.mathnet.ru/eng/jetpl/v99/i7/p463
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