Polarizability of a hydrogenic donor impurity in a ridge quantum wire

被引：58
作者：
Khordad, R. [1 ]
Gharaati, A. [2 ]
Haghparast, M. [2 ]
机构：
[1] Univ Yasuj, Dept Phys, Yasuj 75914353, Iran
[2] Payam E Noor Univ, Dept Phys, Shiraz, Iran
来源：
CURRENT APPLIED PHYSICS | 2010年 / 10卷 / 01期
关键词：
Nanostructures; Polarizability; Quantum wires; Electronic states; Electronic transports; WELL WIRE; BINDING-ENERGY; EXCITED-STATES; TEMPERATURE;
D O I：
10.1016/j.cap.2009.05.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We use in this paper the variational method to calculate the polarizability of a hydrogenic donor impurity, in the presence of electric field, in a V-groove GaAs/AlxGa1-xAs quantum wire. The carrier ground states are analytically obtained by an effective potential scheme together with a suitable coordinate transformation that allows the decoupling of the two-dimensional Schrodinger equation. According to the results obtained from the present work for polarizability and binding energy reveals that the impurity position and field direction play important roles. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：199 / 202
页数：4
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