Journal de Physique I

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DOI: 10.1051/jp1:1994243
J. Phys. I France 4 (1994) 1133-1138

Spin flip probabilities in the 3-D diluted Ising model

Uwe Gropengiesser

Institute of Theoretical Physics, University zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany

(Received 6 April 1994, accepted 19 April 1994)

Abstract
According to Ray and Jan the cluster development in a spin glass can be described by calculating spin flip probabilities and by association of rarely flipping spins. We show that for the pure ferromagnetic Ising model the predicted Ray-Jan percolation transition temperature does not agree with the phase transition of the Ising system. Both diluted and undiluted Ising model show critical percolation spin flipping rates bigger that the Ray-Jan values.