Domain wall nucleation in ferromagnetic nanowire with perpendicular magnetization stimulated by stray field of V-shaped magnetic particle

TL;DR

This study uses micromagnetic simulations to explore how V-shaped magnetic particles influence domain wall nucleation and pinning in ferromagnetic nanowires with perpendicular magnetization, with implications for magnetic logic devices.

Contribution

It introduces a novel simulation-based analysis of domain wall behavior in nanowire systems with V-shaped particles, highlighting potential for magnetic logic applications.

Findings

Magnetic field direction affects domain wall nucleation and pinning.

V-shaped particles can control domain wall motion.

Potential for designing magnetic logic cells.

Abstract

We report the results of micromagnetic simulations of domain wall (DW) nucleation and pinning/depinning processes in ferromagnetic planar structure consisting of nanowire (NW) with perpendicular anisotropy and special V-shaped nanoparticle (NP) with in-plane anisotropy located on top of NW. The magnetization reversal features of this system in an external magnetic field are investigated depending on the direction of particle magnetic moment. Possible variants of magnetic logic cells (LCs) based on such system are discussed.