Raman scattering from acoustic phonons confined in Si nanocrystals

被引:143
作者
Fujii, M [1 ]
Kanzawa, Y [1 ]
Hayashi, S [1 ]
Yamamoto, K [1 ]
机构
[1] KOBE UNIV, FAC ENGN, DEPT ELECT & ELECT ENGN, KOBE 657, JAPAN
关键词
D O I
10.1103/PhysRevB.54.R8373
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have observed Raman scattering from acoustic phonons confined in Si nanocrystals. It was found that the Raman spectra depend strongly on the size of the nanocrystals and the peaks shift to higher frequencies as the size decreases. We also found that the depolarized Raman spectra appear at much lower frequencies than the polarized ones.
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收藏
页码:R8373 / R8376
页数:4
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