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Evidence of a Hybridization Gap in ``Semimetallic'' InAs/GaSb Systems

✍ Scribed by Yang, M. J.; Yang, C. H.; Bennett, B. R.; Shanabrook, B. V.


Book ID
126210829
Publisher
The American Physical Society
Year
1997
Tongue
English
Weight
207 KB
Volume
78
Category
Article
ISSN
0031-9007

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Exchange-induced band hybridization in I
✍ W. Xu; Z. Zeng; A.R. Wright; C. Zhang; J. Zhang; T.C. Lu πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 188 KB

We demonstrate theoretically that the many-body effect such as exchange interaction can cause the hybridization of the electron and hole dispersion relations in InAs/GaSb based type II and broken-gap quantum well (QW) systems. As a result, a terahertz mini-gap at the anti-crossing points of the cond