The quantum acoustomagnetoelectric field in a quantum well with a parabolic potential

被引：16

作者：

Nguyen Quang Bau ^{[1
]}

Nguyen Van Hieu ^{[1
]}

Nguyen Vu Nhan ^{[1
]}

机构：

[1] Vietnam Natl Univ, Hanoi Univ Sci, Fac Phys, Hanoi, Vietnam

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2012年 / 52卷 / 05期

关键词：

Parabolic quantum well; Quantum acoustomagnetoelectric field; Electron-external phonon interaction; Quantum kinetic equation;

D O I：

10.1016/j.spmi.2012.07.023

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The acoustomagnetoelectric (AME) field in a quantum well with a parabolic potential (QWPP) has been studied in the presence of an external magnetic field. The analytic expression for the AME field in the QWPP is obtained by using the quantum kinetic equation for the distribution function of electrons interacting with external phonons. The dependence of the AME field on the temperature T of the system, the wavenumber q of the acoustic wave and external magnetic field B for the specific AlAs/GaAs/AlAs is achieved by using a numerical method. The problem is considered for both cases: The weak magnetic field region and the quantized magnetic field region. The results are compared with those for normal bulk semiconductor and superlattices to show the differences, and we use the quantum theory to calculate the AME field in the QWPP. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：921 / 930

页数：10

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