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  • Electric-field effects in optically generated spin transport

    Author(s)
    Miah, M Idrish
    Griffith University Author(s)
    Miah, Mohammad I.
    Year published
    2009
    Metadata
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    Abstract
    Transport of spin-polarized electrons in semiconductors is studied experimentally. Spins are generated by optical excitation because of the selection rules governing optical transitions from heavy-hole and light-hole states to conduction-band states. Experiments designed for the control of spins in semiconductors investigate the bias-dependent spin transport process and detect the spin-polarized electrons during transport. A strong bias dependence is observed. The electric-field effects on the spin-polarized electron transport are also found to be depended on the excitation photon energy and temperature. Based on a field-dependent ...
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    Transport of spin-polarized electrons in semiconductors is studied experimentally. Spins are generated by optical excitation because of the selection rules governing optical transitions from heavy-hole and light-hole states to conduction-band states. Experiments designed for the control of spins in semiconductors investigate the bias-dependent spin transport process and detect the spin-polarized electrons during transport. A strong bias dependence is observed. The electric-field effects on the spin-polarized electron transport are also found to be depended on the excitation photon energy and temperature. Based on a field-dependent spin relaxation mechanism, the electric-field effects in the transport process are discussed.
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    Journal Title
    Physics Letters A
    Volume
    373
    Issue
    23-24
    DOI
    https://doi.org/10.1016/j.physleta.2009.04.021
    Subject
    Mathematical sciences
    Physical sciences
    Publication URI
    http://hdl.handle.net/10072/30572
    Collection
    • Journal articles

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