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Bistability of optically induced nuclear spin orientation in quantum dots

Russell, A. and Falko, Vladimir and Tartakovskii, A. I. and Skolnick, M. S. (2007) Bistability of optically induced nuclear spin orientation in quantum dots. Physical Review B, 76 (19). ISSN 1550-235X

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    Abstract

    We demonstrate that bistability of the nuclear spin polarization in optically pumped semiconductor quantum dots is a general phenomenon possible in dots with a wide range of parameters. In experiment, this bistability manifests itself via the hysteresis behavior of the electron Zeeman splitting as a function of either pump power or external magnetic field. In addition, our theory predicts that the nuclear polarization can strongly influence the charge dynamics in the dot leading to bistability in the average dot charge.

    Item Type: Article
    Journal or Publication Title: Physical Review B
    Additional Information: © 2007 The American Physical Society
    Uncontrolled Keywords: RELAXATION ; GAAS ; WELLS ; POLARIZATION ; ELECTRON
    Subjects:
    Departments: Faculty of Science and Technology > Physics
    ID Code: 18678
    Deposited By: ep_ss_importer
    Deposited On: 29 Oct 2008 10:28
    Refereed?: Yes
    Published?: Published
    Last Modified: 20 Aug 2013 11:25
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/18678

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