Amplification of sound by conduction electrons in a piezoelectric superlattice

J. B. Ketterson; G. K. Wong

doi:10.1063/1.94162

Amplification of sound by conduction electrons in a piezoelectric superlattice

J. B. Ketterson^*, G. K. Wong

^*Corresponding author for this work

MRC - Materials Research Center

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

It is shown that the amplification coefficient of sound with a wave vector corresponding to a Brillouin zone edge of a superlattice structure containing at least one piezoelectric component is resonantly enhanced with respect to other wave vectors in the presence of an electron drift velocity which exceeds the sound velocity.

Original language	English (US)
Pages (from-to)	43-45
Number of pages	3
Journal	Applied Physics Letters
Volume	43
Issue number	1
DOIs	https://doi.org/10.1063/1.94162
State	Published - 1983

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Amplification of sound by conduction electrons in a piezoelectric superlattice",

abstract = "It is shown that the amplification coefficient of sound with a wave vector corresponding to a Brillouin zone edge of a superlattice structure containing at least one piezoelectric component is resonantly enhanced with respect to other wave vectors in the presence of an electron drift velocity which exceeds the sound velocity.",

author = "Ketterson, {J. B.} and Wong, {G. K.}",

year = "1983",

doi = "10.1063/1.94162",

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AU - Ketterson, J. B.

AU - Wong, G. K.

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AB - It is shown that the amplification coefficient of sound with a wave vector corresponding to a Brillouin zone edge of a superlattice structure containing at least one piezoelectric component is resonantly enhanced with respect to other wave vectors in the presence of an electron drift velocity which exceeds the sound velocity.

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Amplification of sound by conduction electrons in a piezoelectric superlattice

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