Coupled-mode stop bands of acoustic phonons in semiconductor superlattices

Tamura, S.; Wolfe, J. P.

Physical Review B, 1987, 35(5), 2528-2531

Permalink : https://hdl.handle.net/2115/5959

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アクセス権	open access
URI	https://hdl.handle.net/2115/5959
タイトル	Coupled-mode stop bands of acoustic phonons in semiconductor superlattices
著者	e-Rad_Researcher 80109488 著者名 Tamura, S. 田村, 信一朗
著者	著者名 Wolfe, J. P.
言語	英語
発行日	1987-02-15
出版者	American Physical Society
収録物名	Physical Review B
巻(号)	35(5)
ページ	2528-2531
抄録	Dispersion relations of acoustic phonons in the (001) GaAs/AlAs superlattice are calculated for arbitrary propagation directions using the continuum approximation with the elastic anisotropy included. We predict the existence of forbidden band gaps inside the folded Brillouin zone in addition to those at the zone boundary and the zone center. They occur by the mixing of different phonon modes having propagation directions oblique to the interfaces. The phonon transmission rates are calculated for superlattices with a finite number of periods, and significant dips are predicted for frequencies corresponding to zone-center, zone-boundary, and coupled-mode stop bands.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 1987 American Physical Society
PISSN	0163-1829
関連情報	URI http://www.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.35.2528