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  • Photo-Induced Spin Dynamics in Semiconductor Quantum Wells

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    Author(s)
    Miah, M Idrish
    Griffith University Author(s)
    Miah, Mohammad I.
    Year published
    2009
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    Abstract
    We experimentally investigate the dynamics of spins in GaAs quantum wells under applied electric bias by photoluminescence (PL) measurements excited with circularly polarized light. The bias-dependent circular polarization of PL (P PL) with and without magnetic field is studied. The P PL without magnetic field is found to be decayed with an enhancement of increasing the strength of the negative bias. However, P PL in a transverse magnetic field shows oscillations under an electric bias, indicating that the precession of electron spin occurs in quantum wells. The results are discussed based on the electron-hole exchange ...
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    We experimentally investigate the dynamics of spins in GaAs quantum wells under applied electric bias by photoluminescence (PL) measurements excited with circularly polarized light. The bias-dependent circular polarization of PL (P PL) with and without magnetic field is studied. The P PL without magnetic field is found to be decayed with an enhancement of increasing the strength of the negative bias. However, P PL in a transverse magnetic field shows oscillations under an electric bias, indicating that the precession of electron spin occurs in quantum wells. The results are discussed based on the electron-hole exchange interaction in the electric field.
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    Journal Title
    Nanoscale Research Letters
    Volume
    4
    Issue
    4
    DOI
    https://doi.org/10.1007/s11671-008-9241-2
    Copyright Statement
    © The Author(s) 2009. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
    Subject
    Condensed matter physics
    Materials engineering
    Nanotechnology
    Publication URI
    http://hdl.handle.net/10072/29250
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    • Journal articles

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