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

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 non-local 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 2D electron gas.

preprint2010arXivOpen access
H. EbrahimnejadY. RenS. M. FrolovI. AdagideliJ. A. FolkW. Wegscheider
cond-mat.mes-hall
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Open access6 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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H. EbrahimnejadY. RenS. M. FrolovI. AdagideliJ. A. FolkW. Wegscheider

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