Diluted 3d-Random Field Ising Model at zero temperature with metastable dynamics

Details Diluted 3d-Random Field Ising Model at zero temperature with metastable dynamics Diluted 3d-Random Field Ising Model at zero temperature with metastable dynamics

2006-05-06

arxiv.org/abs/cond-mat/0605160v2

Phys. Rev. B 74, 104409 (2006)

Physics

Condensed Matter

Disordered Systems and Neural Networks

9 pages, 14 figures, submitted to PRB

Scientific paper

10.1103/PhysRevB.74.104409

We study the influence of vacancy concentration on the behaviour of the three dimensional Random Field Ising model with metastable dynamics. We focus our analysis on the number of spanning avalanches which allows for a clean determination of the critical line where the hysteresis loops change from continuous to discontinuous. By a detailed finite size scaling analysis we determine the phase diagram and prove numerically the critical exponents along the whole critical line. Finally we discuss the origin of the curvature of the critical line at high vacancy concentration.

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