Depinning phase transition in the two-dimensional clock model with quenched randomness

Qin, Xing; Zheng, Bo; Zhou, N. J.

doi:10.1103/physreve.86.031129

Cited by 10 publications

(5 citation statements)

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“…Besides, two-dimensional spin models, as Ising, XY, and Heisenberg, have been adapted for the study of creep and depinning in domain wall motion [15][16][17][18][19][20]. Such spatial models permit indeed to simulate bubble domains and domains with overhangs, but their intrinsic periodic pinning made these models not truly realistic or comparable to the experiments.…”

Section: Introductionmentioning

confidence: 99%

Magnetic domain wall creep and depinning: A scalar field model approach

et al. 2018

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Magnetic domain wall motion is at the heart of new magnetoelectronic technologies and hence the need for a deeper understanding of domain wall dynamics in magnetic systems. In this context, numerical simulations using simple models can capture the main ingredients responsible for the complex observed domain wall behavior. We present a scalar field model for the magnetization dynamics of quasi-two-dimensional systems with a perpendicular easy axis of magnetization which allows a direct comparison with typical experimental protocols, used in polar magneto-optical Kerr effect microscopy experiments. We show that the thermally activated creep and depinning regimes of domain wall motion can be reached and the effect of different quenched disorder implementations can be assessed with the model. In particular, we show that the depinning field increases with the mean grain size of a Voronoi tessellation model for the disorder.

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Section: Introductionmentioning

confidence: 99%

Magnetic domain wall creep and depinning: A scalar field model approach

et al. 2018

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“…( 31), taking f and g given by Eqs. (33) and (34) into Eq. ( 2), then u and v are two two-rogue waves.…”

Section: Multi-rogue Wave Solutions With N =mentioning

confidence: 99%

New Patterns of the Two-Dimensional Rogue Waves: (2+1)-Dimensional Maccari System*

Wang

Rao

et al. 2017

Commun. Theor. Phys.

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The ocean rogue wave is one kind of puzzled destructive phenomenon that has not been understood thoroughly so far. The two-dimensional nature of this wave has inspired the vast endeavors on the recognizing new patterns of the rogue waves based on the dynamical equations with two-spatial variables and one-temporal variable, which is a very crucial step to prevent this disaster event at the earliest stage. Along this issue, we present twelve new patterns of the two-dimensional rogue waves, which are reduced from a rational and explicit formula of the solutions for a (2+1)-dimensional Maccari system. The extreme points (lines) of the first-order lumps (rogue waves) are discussed according to their analytical formulas. For the lower-order rogue waves, we show clearly in formula that parameter b 2 plays a significant role to control these patterns.

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“…The realm of multicomponent BECs with optical dipole trap leads to realising the spinor BECs (see review article [4] and references therein). For a generic hyperfine spin F = 1 state, the spinor solitons in a one-dimensional coupled Gross-Pitaevskii (GP) system have been studied theoretically [5][6][7] and matter rogue waves have been investigated [8]. Indeed, pertinent experimental works have shown that the creation of mixed type dark-bright-bright and dark-dark-bright solitons and magnetic solitons in spin-1 BECs [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%