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Studies Of Photoreflectance in Cd1−x MnxTe/Cd1−yMnyTe Superlattices

Published online by Cambridge University Press:  10 February 2011

Chenjia Chen ,
Xuezhong Wang ,
Haitao Li ,
Xiaogan Liang ,
Guangyu Chai ,
Zheng Ning  and
Xun Wang
Chenjia Chen
Affiliation:
Department of Physics, Peking University, Beijing 100871, People's Republic of China
Xuezhong Wang
Affiliation:
Department of Physics, Peking University, Beijing 100871, People's Republic of China
Haitao Li
Affiliation:
Department of Physics, Peking University, Beijing 100871, People's Republic of China
Xiaogan Liang
Affiliation:
Department of Physics, Peking University, Beijing 100871, People's Republic of China
Guangyu Chai
Affiliation:
Department of Physics, Peking University, Beijing 100871, People's Republic of China
Zheng Ning
Affiliation:
Surface Physics Laboratory, Fudan University, Shanghai 200433, People's Republic of China
Xun Wang
Affiliation:
Surface Physics Laboratory, Fudan University, Shanghai 200433, People's Republic of China
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Abstract

Photoreflectance spectroscopy has been peformed on a series of Cd1−xMnxTe/Cd1−yMnyTe superlattices. Samples were grown on (001) GaAs substrates by molecular-beam epitaxy with different barriers (x=0.3 to 0.8) and wells (y=0 to 0.01). After taking into consideration the strain-induced and quantum confinement effects, the exciton transition energies of the heavy and light holes can be determined using envelope-function calculations. The calculations are in good agreement with the photoreflectance measurement results. These results show that photoreflectance is a powerful probe for the study of quantized state structures in superlattices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 588: Symposium P – Optical Microstructural Characterization of Semiconductors , 1999 , 251
Copyright
Copyright © Materials Research Society 2000

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