Profiles of the normal and inverted semiconductor interfaces: A Zeeman study in asymmetric Cd1-yZnyTe/CdTe/Cd1-xMnxTe quantum wells.
Profiles of the normal and inverted semiconductor interfaces: A Zeeman study in asymmetric Cd1-yZnyTe/CdTe/Cd1-xMnxTe quantum wells.
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正常和倒置半导体界面的轮廓：非对称 Cd1-yZnyTe/CdTe/Cd1-xMnxTe 量子阱的塞曼研究。
DOI：
10.1103/physrevb.50.2011
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Wasiela
中科院分区：
文献类型：
--
作者：
Grieshaber;Cibert;Gaj;Merle d'Aubigné Y;Wasiela
利用非对称量子阱中激子塞曼效应的定量模型，分别研究了CdTe衬底上生长的Cd1−xMnxTe和反转生长的Cd1−xMnxTe界面的激子塞曼效应.其中Cd1−xMnxTe势垒一侧为磁性势垒，另一侧为非磁性势垒.外在效应(Mn的稀释)在倒置界面处占主导地位，而正常界面允许本征界面效应的上界相当低(由于缺少最近邻)。实验结果与假设Cd/Mn在生长过程中在表层和次表层之间完全交换的模型轮廓符合得很好。
The normal (Cd 1− x Mn x Te grown on CdTe) and inverted (CdTe on Cd 1− x Mn x Te) interfaces are studied separately using a quantitative model of the Zeeman effect of excitons in asymmetric CdTe quantum wells with a magnetic Cd 1− x Mn x Te barrier on one side and a nonmagnetic Cd 1− y Zn y Te barrier on the opposite side. The extrinsic effect (dilution of Mn) is dominant at the inverted interface, while the normal interface allows a rather low upper bound to the intrinsic interface effect (due to missing nearest neighbors). Experimental results agree well with model profiles assuming a complete Cd/Mn exchange during growth between the surface layer and the subsurface layer.