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Measurement of spin-dependent conductivities in a two-dimensional electron gas

Authors :
Ebrahimnejad, H. (author)
Ren, Y. (author)
Frolov, S.M. (author)
Adagideli, I. (author)
Folk, J.A. (author)
Wegscheider, W. (author)
Ebrahimnejad, H. (author)
Ren, Y. (author)
Frolov, S.M. (author)
Adagideli, I. (author)
Folk, J.A. (author)
Wegscheider, W. (author)
Publication Year :
2010

Abstract

Spin accumulation is generated by injecting an unpolarized charge current into a channel of GaAs two-dimensional electron gas subject to an in-plane magnetic field, then measured in a nonlocal geometry. Unlike previous measurements that have used spin-polarized nanostructures, here the spin accumulation arises simply from the difference in bulk conductivities for spin-up and spin-down carriers. Comparison to a diffusive model that includes spin subband splitting in magnetic field suggests a significantly enhanced electron spin susceptibility in the two-dimensional electron gas.<br />Kavli Institute of Nanoscience<br />Applied Sciences

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1357820213
Document Type :
Electronic Resource
Full Text :
https://doi.org/10.1103.PhysRevB.82.041305