Statistical analysis of magnetic domain wall dynamics to quantify Dzyaloshinskii-Moriya interaction

Shi, Xinwei; Fang, Panpan; Sun, Chen; Li, Fuxiang

doi:10.1103/physrevb.108.174416

Phys. Rev. B

2023

DOI: 10.1103/physrevb.108.174416

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Statistical analysis of magnetic domain wall dynamics to quantify Dzyaloshinskii-Moriya interaction

Xinwei Shi,

Panpan Fang,

Chen Sun

et al.

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Tuning domain wall dynamics in a notched ferromagnetic nanostrip with Rashba effect

Dolui,

Dwivedi

2024

Chaos: An Interdisciplinary Journal of Nonlinear Science

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This work delineates a comprehensive investigation of the static and kinetic depinning of a domain wall in a notched ferromagnetic nanostrip. More precisely, we consider a 180° Bloch-type domain wall and examine its behavior under the action of an applied magnetic field, spin-polarized electric current, and Rashba field. Moreover, we assume an artificial notch positioned at the edges of the nanostrip, serving as a pinning site for the wall. We characterize domain walls’ pinning and depinning dynamics in the steady-state regime by using the classical Schryer and Walker trial-function approach. The results demonstrate that the static depinning limits of external stimuli are more significant than the kinetic depinning. It is also observed that higher Rashba field strength increases the static depinning fields/currents while decreasing kinetic depinning ones. Furthermore, both static and kinetic depinning thresholds are elevated with higher damping, whereas an increase in the non-adiabatic spin-transfer parameter leads to a reduction. Finally, we present numerical illustrations of the analytical results, showing good qualitative agreement with the literature.

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Tuning domain wall dynamics in a notched ferromagnetic nanostrip with Rashba effect

Dolui,

Dwivedi

2024

Chaos: An Interdisciplinary Journal of Nonlinear Science

View full text Add to dashboard Cite

show abstract

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Statistical analysis of magnetic domain wall dynamics to quantify Dzyaloshinskii-Moriya interaction

Cited by 1 publication

References 57 publications

Tuning domain wall dynamics in a notched ferromagnetic nanostrip with Rashba effect

Tuning domain wall dynamics in a notched ferromagnetic nanostrip with Rashba effect

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