Acoustic‐wave absorption/amplification in nonparabolic degenerate semiconductors
作者:
S. S. Sharma,
S. K. Sharma,
期刊:
Journal of Applied Physics
(AIP Available online 1978)
卷期:
Volume 49,
issue 4
页码: 2323-2327
ISSN:0021-8979
年代: 1978
DOI:10.1063/1.325117
出版商: AIP
数据来源: AIP
摘要:
Theory for the absorption/amplification coefficient of acoustic waves in nonparabolic degenerate semiconductors is developed using the modified collision term. Ionized impurity scattering is considered to be the sole mechanism of scattering of electrons. It is noted that an increase either in the nonparabolicity factor or in the electron concentration leads to a decrease in the threshold value of the drift velocity of electrons.
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