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Proceedings Paper

Electron-beam formation from spin-orbit interactions in zinc-blende semiconductor quantum wells
Author(s): David H. Berman; Michael E. Flatté
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Paper Abstract

We find a dramatic enhancement of electron propagation along a narrow range of real-space angles from an isotropic source in a two-dimensional quantum well made from a zincblende semiconductor. This "electron beam" formation is caused by the interplay between spin-orbit interaction originating from a perpendicular electric field to the quantum well and the intrinsic spin-orbit field of the zincblende crystal lattice in a quantum well, in situations where the two fields are different in strength but of the same order of magnitude. Beam formation is associated with caustics and can be described semi-classically using a stationary phase analysis.

Paper Details

Date Published: 15 September 2011
PDF: 10 pages
Proc. SPIE 8100, Spintronics IV, 810014 (15 September 2011); doi: 10.1117/12.893825
Show Author Affiliations
David H. Berman, The Univ. of Iowa (United States)
Michael E. Flatté, The Univ. of Iowa (United States)

Published in SPIE Proceedings Vol. 8100:
Spintronics IV
Henri-Jean M. Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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