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Dispersion of superlattice optical phonons

โœ Scribed by N.C. Constantinou; O. Al-Dossary; B.K. Ridley


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
307 KB
Volume
86
Category
Article
ISSN
0038-1098

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Optical phonon damping in the ultrathin-
โœ M.M. Dvoynenko; A.V. Goncharenko; V.R. Romaniuk; E.F. Venger ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 189 KB

We performed the precision measurements of the near-normal far-infrared reflection and transmission spectra of the MBE-grown (GaAs) n /(AlAs) n (n = 1, 2, 4) superlattices. The results obtained show a noticeable (almost twofold) increase in the AlAs-phonon damping when n is decreased from 4 to 1. We