Optical and electrical spin injection and spin transport in hybrid Fe/GaAs devices

S. A. Crooker; M. Furis; X. Lou; D. L. Smith; C. Adelmann; C. J. Palmstrom; P. A. Crowell

doi:10.1063/1.2722785

Optical and electrical spin injection and spin transport in hybrid Fe/GaAs devices

Materials Science 2009-11-11 v1 Mesoscale and Nanoscale Physics

Authors: S. A. Crooker , M. Furis , X. Lou , D. L. Smith , C. Adelmann , C. J. Palmstrom , P. A. Crowell

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Abstract

We discuss methods for imaging the nonequilibrium spin polarization of electrons in Fe/GaAs spin transport devices. Both optically- and electrically-injected spin distributions are studied by scanning magneto-optical Kerr rotation microscopy. Related methods are used to demonstrate electrical spin detection of optically-injected spin polarized currents. Dynamical properties of spin transport are inferred from studies based on the Hanle effect, and the influence of strain on spin transport data in these devices is discussed.

Keywords

spin injection spin transport Fe/GaAs devices magneto-optical Kerr rotation Hanle effect spin polarization

Cite

@article{arxiv.cond-mat/0611729,
  title  = {Optical and electrical spin injection and spin transport in hybrid Fe/GaAs devices},
  author = {S. A. Crooker and M. Furis and X. Lou and D. L. Smith and C. Adelmann and C. J. Palmstrom and P. A. Crowell},
  journal= {arXiv preprint arXiv:cond-mat/0611729},
  year   = {2009}
}

Comments

5 pages, 6 figs. ICPS-28 proceedings (July'06, Vienna) for J. Appl. Phys

Optical and electrical spin injection and spin transport in hybrid Fe/GaAs devices

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