Resonance and mode conversion of phonons scattered by superlattices with inhomogeneity

Mizuno, Seiji

Physical Review B, 2003, 68, 193305

Permalink : https://hdl.handle.net/2115/5704

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アクセス権	open access
URI	https://hdl.handle.net/2115/5704
タイトル	Resonance and mode conversion of phonons scattered by superlattices with inhomogeneity
著者	e-Rad_Researcher 90222322 著者名 Mizuno, Seiji 水野, 誠司
言語	英語
発行日	2003-11-18
出版者	American Physical Society
収録物名	Physical Review B
巻(号)	68
ページ	193305
抄録	For phonons propagating through superlattices, "intermode" Bragg reflections due to the coupling of different polarization modes can occur besides ordinary "intramode" Bragg reflections, and corresponding frequency gaps are classified according to the types of Bragg reflection. We demonstrate the difference between localized modes generated in different types of frequency gaps in superlattices with inhomogeneity. In particular, we show for a superlattice with a free surface, a "perfect" resonant reflection associated with surface-localized modes is realized inside frequency gaps in which intermode Bragg reflections occur. This resonance can be interpreted as resonant tunneling through a symmetric double-barrier potential.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2003 American Physical Society
PISSN	1098-0121
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.68.193305