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

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

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


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.

Original languageEnglish (US)
Article number081716
JournalJournal of Applied Physics
Issue number8
StatePublished - 2007

Bibliographical note

Funding Information:
This work was supported by the DARPA SpinS and Los Alamos LDRD programs, the NSF MRSEC program under Grant No. DMR 02-12302, the Office of Naval Research, and the Minnesota Nanofabrication Center, which is supported by the NSF NNIN program.


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