journal article·2022-07Open access

Surface-induced reduction of the switching field in nanomagnets

R. Bastardis, H. Kachkachi

Abstract

Magnetization reversal in a many-spin nanomagnet subjected to an rf magnetic field, on top of a DC magnetic field, is studied by numerically solving the system of coupled (damped) Landau-Lifshitz equations. It is demonstrated that spin-misalignment induced by surface anisotropy favors switching with a DC magnetic field weaker than the Stoner-Wohlfarth switching field, for optimal intensities and frequencies of the rf field.
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Research context

OpenAlex topics: Magnetic properties of thin films · Theoretical and Computational Physics · Magnetic Properties and Applications

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