Dimensional effects and magnetic field influence on excitons in coupled quantum dots and coupled quantum wells

被引：5
|
作者：
Kaputkina, NE
Lozovik, YE
机构：
[1] Moscow Inst Steel & Alloys, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Spect, Troitsk 142190, Russia
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2005年 / 26卷 / 1-4期
关键词：
magnetoexcitons; quantum wells; quantum dots; electron-hole bilayer system;
D O I：
10.1016/j.physe.2004.08.066
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Direct and indirect excitons in coupled quantum wells and in coupled quantum dots are studied. We consider excitons with two-dimensional, quasi-two-dimensional and three-dimensional carriers. Problems were investigated for a wide range of characteristic parameters-confining to potential steepness, distances between quantum wells or dots, effective width of wells and magnetic fields. The mutual influence of the controlling parameters of the problem on exciton properties is analyzed. Energy and wave function spectra were calculated and dispersion law and effective masses were obtained. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：291 / 296
页数：6
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