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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/18430
Title: Properties of the two-dimensional random-bond [Formula Presented] Ising spin glass
Authors: J. A. Blackman
J. R. Gonçalves
J. Poulter
University of Reading
Mahidol University
Keywords: Mathematics;Physics and Astronomy
Issue Date: 1-Jan-1998
Citation: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. Vol.58, No.2 (1998), 1502-1507
Abstract: We develop an exact gauge-invariant method for studying the two-dimensional [Formula Presented] spin glass. It is applied to the case of an arbitrary concentration of [Formula Presented] positive and p negative bonds and is thus a generalization of the more commonly studied [Formula Presented] model. The ground-state properties are examined and in particular it is shown that the spin correlation exponent η remains constant over the range [Formula Presented] The value obtained is [Formula Presented] A wide range of values for η is quoted in the literature. We indicate possible reasons for the discrepancies and indicate that there are potential advantages in doing calculations at concentrations markedly lower than 50%. © 1998 The American Physical Society.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0001328339&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/18430
ISSN: 1063651X
Appears in Collections:Scopus 1991-2000

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