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Optically induced Hall effect in semiconductors

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Title Optically induced Hall effect in semiconductors
Author Miah, Mohammad Idrish; Gray, Evan
Publication Title Journal of Physics: Conference Series
Editor A. Gencer
Year Published 2009
Place of publication United Kingdom
Publisher IOP Publishing
Abstract We describe an experiment which investigates the effect of a longitudinal electric field on the spin-polarized carriers generated by a circularly polarized light in semiconductors. Our experiment observes the effect as a Hall voltage resulting from nonequilibrium magnetization induced by the spin-carrier electrons accumulating at the transverse boundaries of the sample as a result of asymmetries in scattering for spin-up and spin-down electrons in the presence of spin-orbit interaction. It is found that the effect depends on the longitudinal electric field and doping density as well as on temperature. The results are presented by discussing the dominant spin relaxation mechanisms in semiconductors.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1088/1742-6596/153/1/012062
ISBN 1742-6588
Conference name International Conference on Superconductivity and Magnetism (ICSM2008)
Location China
Date From 2009-09-28
Date To 2009-10-04
URI http://hdl.handle.net/10072/29520
Date Accessioned 2009-11-24
Date Available 2010-10-13T10:03:05Z
Language en_AU
Research Centre Queensland Micro and Nanotechnology Centre
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Condensed Matter Physics-Electronic and Magnetic Properties; Superconduc
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1

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