Raman scattering in superlattices: Anisotropy of polar phonons

R. Merlin; C. Colvard; M. V. Klein; H. Morkoc; A. Y. Cho; A. C. Gossard

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Applied Physics Lett...arrow_drop_down

Applied Physics Letters

Article . 1980 . Peer-reviewed

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https://dx.doi.org/10.1063/1.9...

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Raman scattering in superlattices: Anisotropy of polar phonons

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1980 English Publisher:AIP PublishingJournal:Applied Physics Letters, volume 36, pages 43-45 (issn: 0003-6951, eissn: 1077-3118,

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Authors: R. Merlin; C. Colvard; M. V. Klein; H. Morkoc; A. Y. Cho; A. C. Gossard;

doi: 10.1063/1.91309

Raman scattering in superlattices: Anisotropy of polar phonons

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Abstract

Raman experiments on polar phonons in GaAs-Ga1−xAlxAs superlattices are reported. Other data from the literature, and its interpretation in terms of folding of the phonon Brillouin zone and scattering from q≠0 phonons induced by electronic zone folding, are discussed. An alternative explanation is presented based on optical anisotropy induced by layering. Numerical results show good agreement with experiment.

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University of Illinois at Urbana Champaign
United States
Alcatel-Lucent (France)
France

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