RESONANT-FREQUENCY OF IMPURITY POLARON IN A QUANTUM-WELL

被引：0
|
作者：
WEI, BH
YU, KW
GU, SW
机构：
[1] ACAD SINICA,INT CTR MAT PHYS,SHENYANG 110015,PEOPLES R CHINA
[2] CHINESE UNIV HONG KONG,DEPT PHYS,SHA TIN,HONG KONG
[3] SHANGHAI JIAO TONG UNIV,DEPT APPL PHYS,SHANGHAI 200030,PEOPLES R CHINA
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 1994年 / 21卷 / 04期
关键词：
D O I：
10.1088/0253-6102/21/4/391
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is shown that the resonant frequency omega(c)* of a magnetopolaron bound to a Coulomb impurity in a GaAs/Ga1-xAlxAs quantum well is lower than that of longitudinal optical (LO) phonons owing to the effect of the Coulomb potential. Using MacDonald method to treat the Coulomb potential we come to the conclusion that omega(c)* is really below the frequency of LO phonons but not ''pinning'' at a frequency near that of TO phonons.
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页码：391 / 396
页数：6
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