Mixed spin-1/2 and spin-1 Ising model in transverse random fields

N. Benayad, R. Zerhouni, A. Klümper and J. Zittartz

Physica A: Statistical Mechanics and its Applications, 1999, vol. 262, issue 3, 483-495

Abstract: We investigate the critical properties of a mixed spin-1/2 and spin-1 Ising model in a transverse random field. In this study, we use two approaches: the pair approximation and the mean field renormalization group each combined with the discretized path integral representation. It is found that both methods predict quantitatively the same phase diagram. Critical exponents of the system are also calculated.

Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:262:y:1999:i:3:p:483-495

DOI: 10.1016/S0378-4371(98)00424-5

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