Polaron effects on the binding energy of a hydrogenic impurity in parabolic quantum wires in perpendicular electric and magnetic fields

被引：9
|
作者：
Vartanian, Arshak L. [1 ]
Yeranosyan, Mkrtich A. [1 ]
Vardanyan, Karen A. [1 ]
Kirakosyan, Albert A. [1 ]
机构：
[1] Yerevan State Univ, Dept Phys, Yerevan 375025, Armenia
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2011年 / 49卷 / 04期
关键词：
Quantum wire; Electric field; Magnetic field; Bound polaron; GROUND-STATE ENERGY; BOUND POLARON; VARIATIONAL APPROACH; PHONON INTERACTION; COULOMB IMPURITY; WELL WIRES; DOT; MAGNETOPOLARON; GAAS;
D O I：
10.1016/j.spmi.2010.12.008
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Using a variational approach, the binding energy of shallow hydrogenic impurities in a parabolic quantum wire is calculated within the effective mass approximation. The polaron effects on the ground-state binding energy in electric and magnetic fields are investigated by means of the Pekar-Landau variation technique. The results for the binding energy as well as a polaronic correction are obtained as a function of the applied fields and the impurity positions. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：382 / 389
页数：8
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