ELECTRON-OPTICAL-PHONON INTERACTION IN A TRILAYER SYSTEM OF POLAR CRYSTALS

被引：21
|
作者：
LIANG, XX
DAVISON, SG
机构：
[1] UNIV WATERLOO,GUELPH WATERLOO PROGRAM GRAD WORK PHYS,WATERLOO N2L 3G1,ONTARIO,CANADA
[2] NEIMENGGU UNIV,DEPT PHYS,NEIMENGGU,PEOPLES R CHINA
来源：
SURFACE SCIENCE | 1993年 / 298卷 / 01期
关键词：
D O I：
10.1016/0039-6028(93)90098-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The long-wavelength optical vibration in a trilayer system of polar crystals is studied by using a continuum model. The optical polarization modes of the lattice vibration and the Hamiltonian of the interaction between an electron and the optical phonons are derived. It is found that there are six branches of interface optical modes in a trilayer system. The numerical results for several practical systems are given. The dispersion relations, eigenvectors of the polarization modes and the electron-phonon coupling functions are discussed. The results indicate that some surprising experimental phenomena are expected.
引用
收藏
页码：225 / 240
页数：16
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