Size effects in frustrated dipolar spin systems

Abigail Klopper, Robert Stamps

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    The effect of classical dipole interactions on the paramagnetic to glass phase transition is studied in three- and quasi-two-dimensional site-disordered Ising spin systems. A field theory is developed using a Gaussian variational approach to estimate transition temperatures and study phase stability. Long-range dipolar interactions are found to permit a transition to the glass state. An investigation of the role of relative length scales within the model highlights restrictions on the existence of the glass phase in the two-dimensional case, and this effect is shown to be sensitively dependent on Ising spin geometry.
    Original languageEnglish
    Pages (from-to)1-7
    JournalPhysical Review B
    Volume74
    Issue number21
    DOIs
    Publication statusPublished - 2006

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