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  • Holme, Petter, et al. (author)
  • Phase transitions in the two-dimensional random gauge XY model
  • 2003
  • In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 67:10
  • Journal article (peer-reviewed)abstract
    • The two-dimensional random gauge XY model, where the quenched random variables are magnetic bond angles uniformly distributed within [(-)rpi,rpi](0less than or equal torless than or equal to1), is studied via Monte Carlo simulations. We investigate the phase diagram in the plane of the temperature T and the disorder strength r and infer, in contrast to a prevailing conclusion in many earlier studies, that the system is superconducting at any disorder strength r for sufficiently low T. It is also argued that the superconducting to normal transition has different nature at weak disorder and strong disorder: termed Kosterlitz-Thouless (KT) type and non-KT type, respectively. The results are compared to earlier works.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Kim, Beom JUn (1)
Holme, Petter (1)
Minnhagen, P. (1)
University
Royal Institute of Technology (1)
Language
English (1)
Year
2003 (1)

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