Giant Electro-optical Anisotropy in Type-II Heterostructures
1999; American Physical Society; Volume: 83; Issue: 17 Linguagem: Inglês
10.1103/physrevlett.83.3546
ISSN1092-0145
AutoresА. В. Платонов, В. П. Кочерешко, E. L. Ivchenko, G. V. Mikhaǐlov, D. R. Yakovlev, M. Keim, W. Ossau, A. Waag, G. Landwehr,
Tópico(s)Quantum and electron transport phenomena
ResumoThe quantum confined Pockels effect has been observed in type-II ZnSe/BeTe quantum well structures. In order to describe the in-plane optical anisotropy induced by the electric field in type-II heterostructures, a theoretical approach has been developed which is based on the representation of optical matrix elements in the microscopical tight-binding model. It is shown that polarized light spectroscopy allows one to obtain microscopic information on interfaces in heterostructures, especially on the orientation of chemical bonds.
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