Criticality of the bond-diluted Z(4) ferromagnet on the square lattice

A.M. Mariz, F.D. Nobre and E.S. de Souza

Physica A: Statistical Mechanics and its Applications, 1991, vol. 178, issue 2, 364-375

Abstract: The critical behaviour of the quenched bond-diluted Z(4) ferromagnetic model on the square lattice is investigated within a real-space renormalization-group scheme. The phase diagram as well as the correlation-length and crossover critical exponents are obtained, and the universality classes of the system are determined. The critical frontiers reproduce several known exact results, and are believed to be very precise everywhere.

Date: 1991
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:178:y:1991:i:2:p:364-375

DOI: 10.1016/0378-4371(91)90025-8

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