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High-field Zeeman contribution to the trion binding energy

Vanhoucke, Tony and Hayne, M and Henini, Mohamed and Moshchalkov, Victor V (2002) High-field Zeeman contribution to the trion binding energy. Physical Review B, 65 (4). -. ISSN 1550-235X

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    Abstract

    We examine the role of the Zeeman interaction in determining the bound states of the trion at magnetic fields up to 50 T. Polarization-sensitive photoluminescence measurements on the singlet state of the positively charged trion (X+) in GaAs quantum wells demonstrate a 60% enhancement of the g factor compared to that of the neutral exciton (X-0) in the same sample. This leads to a situation in very high fields where the Zeeman splitting of X+ is sufficiently large to determine whether a state is bound or not, and so calls for a reexamination of what is meant by the binding energy of few particle systems.

    Item Type: Article
    Journal or Publication Title: Physical Review B
    Additional Information: © 2002 The American Physical Society
    Uncontrolled Keywords: POSITIVELY CHARGED EXCITONS ; GAAS QUANTUM-WELLS ; 2-DIMENSIONAL HOLE SYSTEMS ; HIGH MAGNETIC-FIELDS ; SPIN
    Subjects: UNSPECIFIED
    Departments: Faculty of Science and Technology > Physics
    ID Code: 49844
    Deposited By: ep_importer_pure
    Deposited On: 20 Sep 2011 09:24
    Refereed?: Yes
    Published?: Published
    Last Modified: 26 Jul 2012 19:32
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/49844

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