Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 310, Issue 2, Pages 1482-1486Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2006.10.1055
Keywords
spin glass; Monte Carlo; phase transition; parallel tempering; finite size scaling
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Whereas there has been a general consensus for some time that Ising spin glasses have a transition at finite temperature in zero field in three dimensions, there has not been general agreement on two other questions concerning phase transitions in spin glasses in three dimensions: (i) is there a transition at finite temperature in isotropic vector spin glasses (such as Heisenberg), and (ii) is there a phase transition (AT line) in a magnetic field in Ising spin glasses? By using Monte Carlo simulations, analyzed with finite-size scaling, I will argue that the answer to the first question is yes, and to the second question is no. (c) 2006 Elsevier B.V. All rights reserved.
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