摘要
在１３～３００Ｋ温度下研究了稀磁半导体ＺｎＴｅ／Ｚｎ１－ｘＭｎｘＴｅ超晶格的喇曼散射，观测到多个声子喇曼峰．在近共振条件下，峰的强度增强，线宽显著变窄，并观测到更多不同声子组合的喇曼散射峰．计算和分析了超晶格中应力引起的声子频移，与实验结果一致．
Raman experiments were performed in a temperature range of 13～300K for the diluted magnetic semiconductor ZnTe/Zn 1- x Mn x Te superlattice . Multi phonon spectra were observed. In near resonant condition, the intensities of Raman lines were increased and their FWHM narrowed significantly and more Raman lines were observed. The frequency shifts induced by the strain effect were calculated and compared with the experimental results.The interface mode (IF) was observed and assigned.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第2期102-106,共5页
Journal of Infrared and Millimeter Waves
基金
国家自然科学基金
关键词
超晶格
喇曼散射
界面模
半导体
碲化锌
ZnTe/Zn 1- x Mn x Te, superlattice, Raman scattering, interface mode.
