RESONANCE RAMAN-SPECTROSCOPY OF ELECTRON-HOLE PAIRS - POLAR PHONON COUPLING IN SEMICONDUCTOR QUANTUM MICROCRYSTALS

被引：75

作者：

EFROS, AL ^{[1
]}

EKIMOV, AI ^{[1
]}

KOZLOWSKI, F ^{[1
]}

PETROVAKOCH, V ^{[1
]}

SCHMIDBAUR, H ^{[1
]}

SHUMILOV, S ^{[1
]}

机构：

[1] AF IOFFE PHYSICOTECH INST,LENINGRAD 194021,USSR

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 78卷 / 10期

关键词：

D O I：

10.1016/0038-1098(91)90242-N

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on a novel type of interaction between surface phonons and confined electron-hole pairs revealed in resonance Raman scattering of GaP nanocrystals. Such nanocrystals are prepared for the first time in a glassy matrix with the process of recondensation growth. Experimental and theoretical results prove that phonons interacting with electron-hole pairs have orbital momentum 1 = 2 and distinguish from the well-known Frohlich surface phonons with 1 = 1. These selection rules are due to the symmetry of the quantum size states of holes and electrons taking part in resonance Raman scattering.

引用

页码：853 / 856

页数：4

共 16 条

[1] ELECTRON-VIBRATION COUPLING IN SEMICONDUCTOR CLUSTERS STUDIED BY RESONANCE RAMAN-SPECTROSCOPY [J].