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

H. Ebrahimnejad; Y. Ren; S. M. Frolov; I. Adagideli; J. A. Folk; W. Wegscheider

doi:10.1103/PhysRevB.82.041305

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

H. Ebrahimnejad, Y. Ren, S. M. Frolov, I. Adagideli, J. A. Folk, W. Wegscheider

Research output: Contribution to journal › Article › Academic › peer-review

6 Downloads (Pure)

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.

Original language	English
Article number	041305(R)
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	82
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.82.041305
Publication status	Published - 15 Jul 2010
Externally published	Yes

Access to Document

10.1103/PhysRevB.82.041305

Ebrahimnejad-2010-Measurement-of-spin-dependent-conduFinal published version, 169 KB

Cite this

@article{8a16edfabaf84822acff5b0544e5e3e7,

title = "Measurement of spin-dependent conductivities in a two-dimensional electron gas",

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.",

author = "H. Ebrahimnejad and Y. Ren and Frolov, {S. M.} and I. Adagideli and Folk, {J. A.} and W. Wegscheider",

year = "2010",

month = jul,

day = "15",

doi = "10.1103/PhysRevB.82.041305",

language = "English",

volume = "82",

journal = "Physical review B: Covering condensed matter and materials physics",

issn = "2469-9950",

publisher = "American Institute of Physics",

number = "4",

}

TY - JOUR

T1 - Measurement of spin-dependent conductivities in a two-dimensional electron gas

AU - Ebrahimnejad, H.

AU - Ren, Y.

AU - Frolov, S. M.

AU - Adagideli, I.

AU - Folk, J. A.

AU - Wegscheider, W.

PY - 2010/7/15

Y1 - 2010/7/15

N2 - 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.

AB - 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.

UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000280234100001&KeyUID=WOS:000280234100001

U2 - 10.1103/PhysRevB.82.041305

DO - 10.1103/PhysRevB.82.041305

M3 - Article

VL - 82

JO - Physical review B: Covering condensed matter and materials physics

JF - Physical review B: Covering condensed matter and materials physics

SN - 2469-9950

IS - 4

M1 - 041305(R)

ER -

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

Abstract

Access to Document

Other files and links

Fingerprint

Cite this