Excitons in ZnO/Zn1-xMnxO quantum wells

被引：1
|
作者：
Tchelidze, T.
Chikoidze, E.
Kereselidze, T.
Dumont, Y.
机构：
[1] Tbilisi State Univ, Fac Exact & Nat Sci, Dept Phys, GE-0128 Tbilisi, Georgia
[2] Univ Versailles, CNRS, GEMAC, F-92195 Meudon, France
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2007年 / 244卷 / 05期
关键词：
D O I：
10.1002/pssb.200675116
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In order to estimate the perspectives of using ZnO/Zn1-xMnxO quantum wells for reliable high temperature ferromagnetism (specially for increasing Curie temperature in this structure) we investigate excitons in ZnO/Zn1-xMnxO quantum wells. The existence of weak built-in electric field is investigated. Electric field and Coulomb interaction is accounted by means of direct diagonalization. Calculations showed weak dependence of exciton binding energy on well width. Electric field only slightly increases the distance between electron and hole. It rotates ground state excitons and aligns them along the field. Calculations also showed increase of ground state exciton lifetime with increasing well width. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：1495 / 1499
页数：5
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