Avalanche properties in striplike ferromagnetic systems

Mijatović, Svetislav; Nedić, Milica; Graovac, Stefan; Spasojević, Djordje

doi:10.1103/physreve.102.022124

Cited by 14 publications

(3 citation statements)

References 58 publications

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“…To interpret the behavior of nonequilateral thin ferromagnetic systems, equilibrium version of the RFIM has been initially used [19,20]. This was followed by the studies [18,[21][22][23] treating the nonequilateral systems within the framework of the same model, considering the effects of aspect ratio [24] and different underlying lattice geometry [25,26], however also on systems driven adiabatically. On the other hand, several studies on systems driven with the finite driving rate have been reported recently, but on equilateral systems [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…Here we study the dimensional crossover in systems driven by the magnetic field which is increased in each time step by the constant driving rate Ω = ∆H/∆t. This type of driving provides a more realistic framework for the numerical interpretation of experimental measurements conducted on ferromagnetic strips, ribbons, thin films [21,33,34] and other experimental studies [2,[35][36][37] conducted on systems having a linear size in one dimension much smaller in comparison with the other two dimensions.…”

Section: Introductionmentioning

confidence: 99%

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Dimensional crossover in driving-rate induced criticality on the hysteresis-loop of disordered ferromagnetic systems

Spasojević¹,

Mijatović²,

Janićević³

2023

J. Stat. Mech.

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We study the effect of finite driving rate on the nonequilibrium hysteresis-loop criticality with the systems’ nonequilateral geometry constraints allowing the dimensional crossover from three-dimensional to two-dimensional disordered ferromagnetic systems . For each system’s thickness, the disorder is fixed above the critical line for adiabatic driving, such that the emergent critical behaviors are solely attributed to the increased driving rates of the external field.We demonstrate it by computing the pertaining magnetizations and coercive fields, changes in avalanche distributions and shapes, and correlation functions of spin-flip events where the pace of the field increments are varied in a broad range. Our results reveal that the driving field rate profoundly affects system evolution attaining three distinct regimes of the induced criticality at the proper thickness-dependent rate values. In particular, these regimes are characterized by the occurrence of non-spanning avalanches (slow driving), the first appearance of spanning avalanches (intermediate regime), and being overwhelmed by system-spanning avalanches (fast driving regime) for a given thickness. Our results will bring some critical insights to the theoretical and experimental studies on the field-driven nonequilateral systems both for conceptual reasons and the versatility of their applications..

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dimensional crossover in driving-rate induced criticality on the hysteresis-loop of disordered ferromagnetic systems

Spasojević¹,

Mijatović²,

Janićević³

2023

J. Stat. Mech.

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“…This model has been studied numerically in a lot of papers. Its critical behavior and scaling laws in the case of equilateral lattices were investigated in [41,[50][51][52][53][54][55][56][57], whilst recently the systems with different geometry were studied in [58][59][60][61][62] together with the impact of lattice topology on its criticality [63][64][65][66][67].…”

Section: Introductionmentioning

confidence: 99%