ANISOTROPY EFFECTS ON OPTICAL PHONON MODES IN GAAS/ALAS QUANTUM-WELLS

被引：5
|
作者：
CHAMBERLAIN, MP [1 ]
TRALLEROGINER, C [1 ]
CARDONA, M [1 ]
机构：
[1] HAVANA UNIV,DEPT THEORET PHYS,VELADO 10400,CUBA
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.50.1611
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Starting from a continuum theory of optical phonon modes in an assumed isotropic GaAs/AlAs quantum well, we have used peturbation theory to determine the effects of anisotropy on the mode frequencies. In particular, a [001]-grown quantum well with modes dispersing along [010] and [110] has been considered. We have derived analytical expressions for the frequency corrections and illustrate the differences for modes dispersing in these two directions.
引用
收藏
页码：1611 / 1618
页数：8
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