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Physics of Metals and Metallography

Erschienen in:

01.01.2024 | ELECTRICAL AND MAGNETIC PROPERTIES

Micromagnetic Simulation of Irregular Magnetization Reversal Dynamics in a Nanosized Permalloy Film with a Stepped Relief of the Boundary Surface

verfasst von: V. V. Zverev

Erschienen in: Physics of Metals and Metallography | Ausgabe 1/2024

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Abstract

The paper presents three-dimensional micromagnetic simulation of the magnetization reversal process of permalloy film with additional relief elements of step-like shape made of the same material. It is shown that in the course of magnetization reversal in a constant magnetic field, the initial magnetization distribution containing a C-shaped domain wall is transformed into a magnetization reversal zone filled with vortex structures. In this case, the magnetization reversal dynamics becomes irregular. The peculiarities of the dynamics of the magnetization reversal zone (change in magnetization reversal rate, temporary or final cessation of motion) are revealed for different types of surface relief elements (strips, linear or two-dimensional arrays of rectangular parallelepipeds of different sizes). Visualization methods of vortex structures are described.

Vorheriger Artikel A New Stationary Mode of Coupled Oscillations in a Three-Layer Spin-Transfer Nano-Oscillator at High Currents

Nächster Artikel Relation between Magnetism and Electronic Structure of 3d-Metal Alloys in the Stoner Theory and in the DSFT

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Titel: Micromagnetic Simulation of Irregular Magnetization Reversal Dynamics in a Nanosized Permalloy Film with a Stepped Relief of the Boundary Surface
verfasst von: V. V. Zverev
Publikationsdatum: 01.01.2024
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 1/2024
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X23602391

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