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    Possible suppression of canted spin order in the double-exchange lanthanum manganites

    Satpathy, Sashi Sekhar, 1956-
    Mishra, S. K.
    Aryasetiawan, F.
    Gunnarsson, O.
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    [PDF] Article (130.4Kb)
    Date
    1997
    Format
    Article
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    Abstract
    The existence of the canted (noncollinear) spin order in the double-exchange magnets is examined by solving a model Hamiltonian using a combination of the Hartree-Fock approximation and an exact diagonalization scheme using the Lanczos method. It is shown that the tendency for the canted spin order depends significantly on the electronic parameters and that the double-exchange mechanism does not always lead to a canted magnetic state, even for small carrier concentration.
    URI
    http://hdl.handle.net/10355/9465
    Citation
    Phys. Rev. B 55, 2725-2728 (1997)
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    • Physics and Astronomy publications (MU)

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