Stark effect in CdTe/Cd1-xMnxTe strained double quantum wells

被引：0
|
作者：
Freire, JAK
Farias, GA
da Silva, EF
机构：
[1] Univ Fed Ceara, Dept Fis, Ctr Ciencias Exatas, BR-60455900 Fortaleza, Ceara, Brazil
[2] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil
来源：
BRAZILIAN JOURNAL OF PHYSICS | 2004年 / 34卷 / 2B期
关键词：
D O I：
10.1590/S0103-97332004000400040
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report a detailed analysis of how the existence of interface roughness can change exciton localization in CdTe/Cd1-xMnxTe strained double quantum wells (DQW's) taking into account magnetic and electric field effects. We consider that the potential, effective mass, and the intrinsic magnetization are dependent on the profile of the Mn molar fraction at the interfacial region. Results obtained with CdTe/Cd0.68Mn0.32Te DQW's show that the energy band tailoring generated by the strain and the Zeeman effect is responsible by a displacement of the exciton energy peaks and that small changes in the interface width (10 Angstrom) can be responsible for a 30 meV exciton energy broadening.
引用
收藏
页码：675 / 677
页数：3
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