Hysteresis and avalanches: phase transitions and critical phenomena in driven disordered systems

Dahmen, Karin A.; Sethna, James P.; Kuntz, Matthew C.; Perkovic, Olga

doi:10.1016/s0304-8853(00)00749-6

Cited by 24 publications

(15 citation statements)

References 22 publications

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“…While the AE and elastic three-point-bending experiments 20 have been instrumental in defining jerky interfacial behavior, both methods fail to generate a full picture of the front propagation, namely the coexistence of smooth fronts and jerks, and thermally activated movement and athermal avalanches. In magnetic systems, Barkhausen noise shows a similar characteristic 21 .…”

Section: Introductionmentioning

confidence: 91%

Thermally activated avalanches: Jamming and the progression of needle domains

et al. 2011

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to observe jerks follows a power law spectrum with energy exponents close to α ≈ 2. At even lower temperatures, the boundary kinetics becomes erratic even in our large (one million atoms) system. The lateral movement of twin walls is found for our thin twin walls (w = 3 layers) to operate by kinks which propagate along the twin wall. The needle domains nucleate either from the surface or from other existing twin walls. Intersections of twin walls constitute pinning centers which impede the free movement of the kinks in the walls. These intersection points act then as a pattern of intrinsic, self-induced defects which lead ultimately to the power law distribution of the crackling noise of the domain walls.

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Section: Introductionmentioning

confidence: 91%

Thermally activated avalanches: Jamming and the progression of needle domains

et al. 2011

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“…Two scaling parameters can be predicted from this model, firstly the size of the avalanches D(S) $ S À and the correlation between the avalanche and the avalanche duration T $ S Àz . The value for these exponents for the three most important classes of solutions [90,91] is as follow: ¼ 1.6 (short range), 1.28 (front propagation) and 1.5 (mean field); z ¼ 0.58 (short range), 0.58 (front propagation) and 0.5 (mean field).…”

Section: Phase Transitions 663mentioning

confidence: 99%

On the dynamics of ferroelastic domain boundaries under thermal and elastic forcing

Salje

2010

Phase Transitions

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Experimental observations and some theoretical models for the propagation of ferroelastic domain boundaries and phase fronts are reviewed. While the static configurations of domains and domain walls are reasonably well understood in ferroelastics (and specifically in shape memory alloys), one finds that the dynamic features have been less thoroughly investigated. In most cases, a smooth movement of domain walls in the ballistic limit is observed, accelerated propagation seems not to exist in the time and space limits of most experiments. Pattern formation occurs when the local order parameter is conserved over a length scale which is different from the ferroelastic correlation length. Currently, only few spiky elastic measurements and domain wall jamming in ferroelastics have been reported. Emphasis is given to disordered systems in which the occurrence of 'jerky elasticity' can be expected.

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“…In order to model and explain the Barkhausen noise that emerges when the ferromagnetic sample is driven by varying external magnetic field, a number of theoretical models were developed [24][25][26][27][28][29][30][31][32][33][34]. One of the most prominent appears to be the random field Ising model (RFIM), that has been extensively studied in the past few decades [35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

The effects of external noise on threshold induced correlations in ferromagnetic systems

Jovkovic,

Janicevic,

Mijatovic

et al. 2021

Preprint

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Hysteresis and avalanches: phase transitions and critical phenomena in driven disordered systems

Cited by 24 publications

References 22 publications

Thermally activated avalanches: Jamming and the progression of needle domains

Thermally activated avalanches: Jamming and the progression of needle domains

On the dynamics of ferroelastic domain boundaries under thermal and elastic forcing

The effects of external noise on threshold induced correlations in ferromagnetic systems

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