Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/1363
Title: Finite driving rate effects in the nonequilibrium athermal random field Ising model of thin systems
Authors: Janićević, Sanja 
Mijatović, Svetislav 
Spasojević, Đorđe 
Keywords: Finite driving rate;Nonequilateral disordered systems;Random field ising model;Spin avalanches;Thin systems
Issue Date: 15-Mar-2023
Journal: Physica A: Statistical Mechanics and its Applications
Abstract: 
Thin disordered ferromagnetic systems driven by varying magnetic field represent a challenge from theoretical, experimental and technological perspective. Understanding their temporal evolution under the mutual influence of finite driving rate with which the external magnetic field changes, geometry of the sample, and the amount of disorder is a complex task. It is studied here within the framework of the nonequilibrium athermal random field Ising model which has a dynamical behavior suitable for this kind of analysis both in statistical physics and physics of magnetism. Our results, obtained by means of numerical simulations performed at a discrete time scale of the model in a wide range of driving rates and domains of disorder, unveil the rate sensitivity exhibited by the response signal and the underlying avalanche distributions, correlation functions of spin-flip events, average avalanche shapes and the values of coercive field. Due to the rate-imposed spreading of multiple avalanches during the same/partially shared intervals of time, the pertaining effective exponents turn out to be rate-dependent as well. Our findings provide new insights on some features of field driven nonequilateral systems that could be applicable for investigations of a variety of thin systems driven at finite driving rates.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/1363
ISSN: 03784371
DOI: 10.1016/j.physa.2023.128553
Appears in Collections:Journal Article

Show full item record

SCOPUSTM   
Citations

1
checked on Dec 18, 2024

Page view(s)

27
checked on Dec 24, 2024

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.