Direct interband light absorption in a cylindrical quantum dot in quantizing magnetic field

被引：55

作者：

Atoyan, MS ^{[1
]}

Kazaryan, EM ^{[1
]}

Sarkisyan, H ^{[1
]}

机构：

[1] Yerevan State Univ, Dept Phys, Yerevan 375025, Armenia

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 22卷 / 04期

关键词：

absorption coefficient; quantum dot; magnetic field;

D O I：

10.1016/j.physe.2003.09.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper the direct interband transitions in cylindrical quantum dot (QD) made of GaAs are studied in the presence of a magnetic field. Two models of QD confinement potential are discussed. For both models the expressions for absorption coefficients and dependencies of effective threshold frequencies of absorption on the value of applied magnetic field and on geometrical sizes of QD are obtained. The selection rules corresponding to different transitions between quantum levels are found. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：860 / 866

页数：7

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