Quantum-well anisotropic forbidden transitions induced by a common-atom interface potential

Y. H. Chen; Z. Yang; Z. G. Wang; Xu Bo; J. B. Liang

doi:10.1103/PhysRevB.60.1783

Quantum-well anisotropic forbidden transitions induced by a common-atom interface potential

Y. H. Chen, Z. Yang, Z. G. Wang, Xu Bo, and J. B. Liang

Phys. Rev. B 60, 1783 – Published 15 July 1999

Abstract

A prominent effect of the interface potential (IP) [E. L. Ivchenko and A. Yu. Kaminski, Phys. Rev. B 54, 5852 (1996); O. Krebs and P. Voisin, Phys. Rev. Lett. 77, 1829 (1996)], the optical anisotropy of the forbidden transitions in quantum wells has been observed by reflectance-difference spectroscopy. Predictions by the heavy-light-hole coupling IP models are qualitatively consistent with all the observed features of the forbidden and the allowed transitions. The fact that the predicted value of the relative transition strength, which depends on neither the IP strength nor the electric field, disagrees with the observed one indicates that coupling involving X and/or L bands may also be important.

Received 26 January 1999

DOI:https://doi.org/10.1103/PhysRevB.60.1783

Authors & Affiliations

Y. H. Chen and Z. Yang

Department of Physics, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China

Z. G. Wang, Xu Bo, and J. B. Liang

Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Box 912, Beijing 100083, China

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Vol. 60, Iss. 3 — 15 July 1999

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