ACOUSTIC PHONON PEAK SPLITTING AND SATELLITE LINES IN RAMAN-SPECTRA OF SEMICONDUCTOR SUPERLATTICES

被引：7
|
作者：
ZHANG, PX
LOCKWOOD, DJ
BARIBEAU, JM
机构：
[1] Institute for Microstructural Sciences, National Research Council of Canada, Ottawa
来源：
APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 03期
关键词：
D O I：
10.1063/1.108985
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Folded longitudinal acoustic phonon peak splitting and sets of satellite lines are observed in high resolution Raman spectra of Si/Si1-xGex superlattices. Analysis shows that the phonon peak splittings are possibly due to a variation in the superlattice periodicity and the sets of satellite lines originate from the interference of the folded longitudinal acoustic phonons and the confined acoustic phonons in the superlattice film. These fine structures in Raman spectra enable a detailed characterization of the superlattices.
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页码：267 / 269
页数：3
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