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Acoustic phonons in multiconstituent superlattices

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Title: Acoustic phonons in multiconstituent superlattices
Authors: Tamura, S.1 Browse this author →KAKEN DB
Wolfe, J. P. Browse this author
Authors(alt): 田村, 信一朗1
Issue Date: 15-Sep-1998
Publisher: American Physical Society
Journal Title: Physical Review B
Volume: 38
Issue: 8
Start Page: 5610
End Page: 5614
Publisher DOI: 10.1103/PhysRevB.38.5610
Abstract: Acoustic phonons propagating parallel to the growth direction of a periodic superlattice composed of more than two different constituent layers are studied theoretically. We give general formulas for the phonon dispersion relation and the width Δν of frequency gaps existing at the center and boundary of the folded Brillouin zone. We also calculate the structure factor for phonons and find that δ-function peaks corresponding to Bragg reflection have prefactors proportional to Δν. This relation can be used to explain the relative magnitude of transmission dips found at frequencies satisfying the Bragg condition.
Rights: Copyright © 1988 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田村 信一朗

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