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  • Roles of the bias fields in the exchange interaction between the electron and hole spins in quantum wells

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    58599_1.pdf (165.9Kb)
    Author(s)
    Miah, M Idrish
    Griffith University Author(s)
    Miah, Mohammad I.
    Year published
    2009
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    Abstract
    We study the electric-field effects on the spin polarization (P) in dependence of the strength and orientation of the magnetic field in GaAs quantum wells by photoluminescence measurements. The P in a transverse magnetic field is found to oscillate. The transverse electron and heavy-hole g-factors are estimated from the dependences of the oscillation frequency on magnetic field and applied bias. Measurements with the angular variations in the magnetic field show that both the oscillation frequency and decay rate are increased with increasing the angle from the transverse direction. It is, however, shown that the application ...
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    We study the electric-field effects on the spin polarization (P) in dependence of the strength and orientation of the magnetic field in GaAs quantum wells by photoluminescence measurements. The P in a transverse magnetic field is found to oscillate. The transverse electron and heavy-hole g-factors are estimated from the dependences of the oscillation frequency on magnetic field and applied bias. Measurements with the angular variations in the magnetic field show that both the oscillation frequency and decay rate are increased with increasing the angle from the transverse direction. It is, however, shown that the application of the bias to the quantum wells weakens the exchange interaction between the electron and hole spins. 鲰09 American Institute of Physics
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    Journal Title
    Applied Physics Letters
    Volume
    94
    DOI
    https://doi.org/10.1063/1.3119318
    Copyright Statement
    © 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
    Subject
    Physical sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/28018
    Collection
    • Journal articles

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