Polaron states in a double quantum ring structure in the presence of electric and magnetic fields

被引：11
|
作者：
Shahbandari, Abbas [1 ]
Yeranosyan, Mkrtich A. [1 ]
Vartanian, Arshak L. [1 ]
机构：
[1] Yerevan State Univ, Dept Solid State Phys, Yerevan 0025, Armenia
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2013年 / 57卷
关键词：
Double quantum ring; Polaron; Electric and magnetic fields; IMPURITY BOUND POLARON; HYDROGENIC DONOR IMPURITY; BINDING-ENERGY; HYDROSTATIC-PRESSURE; WELL WIRES; DOT; ALXGA1-XAS; GAAS;
D O I：
10.1016/j.spmi.2013.01.011
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In the framework of Landau-Pekar theory, we study the polaron problem in the double quantum ring structures within the effective mass approximation in the presence of perpendicular electric and parallel magnetic fields. The electron and polaron ground-state energies are analyzed as functions of external fields and double quantum ring structure parameters. It has been shown that the probability of finding electron in both inner and outer quantum rings can be controlled by barriers and applied fields. (C) 2013 Elsevier Ltd. All rights reserved.
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页码：85 / 94
页数：10
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