Universality Class of Thermally Diluted Ising Systems at Criticality

Details Universality Class of Thermally Diluted Ising Systems at Criticality Universality Class of Thermally Diluted Ising Systems at Criticality

2000-01-26

arxiv.org/abs/cond-mat/0001388v1

Physics

Condensed Matter

Statistical Mechanics

7 pages, 6 figures, RevTex

Scientific paper

10.1103/PhysRevE.62.191

The universality class of thermally diluted Ising systems, in which the realization of the disposition of magnetic atoms and vacancies is taken from the local distribution of spins in the pure original Ising model at criticality, is investigated by finite size scaling techniques using the Monte Carlo method. We find that the critical temperature, the critical exponents and therefore the universality class of these thermally diluted Ising systems depart markedly from the ones of short range correlated disordered systems. Our results agree fairly well with theoretical predictions previously made by Weinrib and Halperin for systems with long range correlated disorder.

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