Hysteresis and avalanches in the T=0 random-field Ising model with 2-spin-flip dynamics

Abstract

We study the non-equilibrium behavior of the three-dimensional Gaussian random-field Ising model at T=0 in the presence of a uniform external field using a 2-spin-flip dynamics. The deterministic, history-dependent evolution of the system is compared with the one obtained with the standard 1-spin-flip dynamics used in previous studies of the model. The change in the dynamics yields a significant suppression of coercivity, but the distribution of avalanches (in number and size) stays remarkably similar, except for the largest ones that are responsible for the jump in the saturation magnetization curve at low disorder in the thermodynamic limit. By performing a finite-size scaling study, we find strong evidence that the change in the dynamics does not modify the universality class of the disorder-induced phase transition.

arXiv comment9 pages, 10 figures

References in corpus (11)

• Hysteresis and hierarchies: dynamics of disorder-driven first-order phase transformations
• Hysteresis, Avalanches, and Disorder Induced Critical Scaling: A Renormalization Group Approach
• Disorder-Induced Critical Phenomena in Hysteresis: Numerical Scaling in Three and Higher Dimensions
• Zero-temperature Hysteresis in Random-field Ising Model on a Bethe Lattice
• Local mean-field study of capillary condensation in silica aerogels
• Finite Size Scaling analysis of the avalanches in the 3d Gaussian Random Field Ising Model with metastable dynamics
• Spanning avalanches in the three-dimensional Gaussian Random Field Ising Model with metastable dynamics: field dependence and geometrical properties
• Hysteresis, Avalanches, and Noise: Numerical Methods
• Disorder induced critical phenomena in magnetically glassy Cu-Al-Mn alloys
• Phase transitions in a disordered system in and out of equilibrium
• Ground state optimization and hysteretic demagnetization: the random-field Ising model

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• Recent topics on metastability, hysteresis, avalanches, and acoustic emission associated to martensitic transitions in functional materials