2015
DOI: 10.1063/1.4921421
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Thermal effects on transverse domain wall dynamics in magnetic nanowires

Abstract: Articles you may be interested inMagnetic imaging of the pinning mechanism of asymmetric transverse domain walls in ferromagnetic nanowires

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Cited by 20 publications
(31 citation statements)
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“…Possible origins for the symmetry breaking leading to incoherent precession of m DW in different parts of the DW could be edge effects, and/or quenched disorder, interacting with the DW [10,[14][15][16][17][18][19][20]; these may include dislocations, precipitates, grain boundaries, thickness fluctuations of the strip, etc. Here we explore the dynamics of extended DWs in wide CoPtCr PMA strips, with a Bloch wall equilibrium structure, using large-scale micromagnetic simulations with and without quenched disorder.…”
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confidence: 99%
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“…Possible origins for the symmetry breaking leading to incoherent precession of m DW in different parts of the DW could be edge effects, and/or quenched disorder, interacting with the DW [10,[14][15][16][17][18][19][20]; these may include dislocations, precipitates, grain boundaries, thickness fluctuations of the strip, etc. Here we explore the dynamics of extended DWs in wide CoPtCr PMA strips, with a Bloch wall equilibrium structure, using large-scale micromagnetic simulations with and without quenched disorder.…”
mentioning
confidence: 99%
“…In order to account for the effect of quenched disorder, here assumed to originate from the polycrystalline structure of the strip [41], we construct grains using a Voronoi tessella- tion [14,15], with an average grain size of 11.9 nm [35]; see the inset of Fig. 2.…”
mentioning
confidence: 99%
“…II, we compare the results obtained from the full micromagnetic simulations with the diffusion constant D of approximately 310 nm 2 /ns predicted by the model introduced, and numerically validated in Ref. 68 using the RK12 solver with fixed time step. The results show that the standard errors s are larger than the difference between the obtained diffusion constants and the expected value.…”
Section: E Thermal Diffusion Of a Domain Wallmentioning
confidence: 98%
“…In a last validation problem we investigate the thermal driven diffusion of transverse domain walls in a non-disordered permalloy nanowire 68 . We simulate a nanowire with cross-sectional dimensions of 100×10 nm 2 discretized in cells of 3.125 × 3.125 × 10nm 3 .…”
Section: E Thermal Diffusion Of a Domain Wallmentioning
confidence: 99%
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