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VOLUME 94 | ISSUE 8 | PAGE 704
Spin-related phenomena in InAs/GaSb quantum wells
A. Zakharova+, I. Semenikhin+, K. A. Chao

+Institute of Physics and Technology RAS, 117218 Moscow, Russia
*Department of Physics, Lund University, S-22362 Lund, Sweden
×Department of Physics, Chemistry and Biology, Linköping University, S-58183 Linköping, Sweden

Abstract
We have studied theoretically the influence of symmetry breaking mechanisms: structural inversion asymmetry, bulk inversion asymmetry, relativistic and non-relativistic interface Hamiltonian and warping on spin split of levels Δ E and optical absorption of linearly polarized light in asymmetrical quantum wells made from zinc-blende materials grown on [001] direction. The AlSb/InAs/GaSb/AlSb broken-gap quantum wells with hybridized electron-hole states sandwiched by the AlSb barriers have been considered. We have obtained substantial contributions of these effects into the absolute values of spin split of electron and hole states and spin-flip optical transitions for the initial state in-plane wave vectors along low symmetry directions such as [12].


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