2ND-ORDER RAMAN-SCATTERING OF SMALL GE PARTICLES IN RESONANCE WITH THE E(1) AND E(1)+DELTA-1 EDGES

被引：9
|
作者：
SASAKI, Y
HORIE, C
机构：
[1] Department of Basic Science, Ishinomaki Senshu University
来源：
PHYSICAL REVIEW B | 1993年 / 48卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.48.2009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Second-order Raman spectra of Ge particles with sizes of about 10 nm have been studied under resonance with the E1 and E1 + DELTA1 edges. The obtained spectra are analyzed in terms of discrete electronic and vibrational energy levels and in terms of the surface phonon mode. The discreteness of those eigenstates yields a decrease in the scattering rate of holes due to the k approximately 0 phonons in the small particles. A Raman band located just below the 2TO-phonon band is attributed to the scattering by two surface phonons.
引用
收藏
页码：2009 / 2011
页数：3
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