Hysteresis of nanocylinders with Dzyaloshinskii-Moriya interaction

The potential for application of magnetic skyrmions in high density storage devices provides a strong drive to investigate and exploit their stability and manipulability. Through a three-dimensional micromagnetic hysteresis study, we investigate the question of existence of skyrmions in cylindrical...

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Bibliographic Details
Published in:Applied physics letters 2016-09, Vol.109 (12)
Main Authors: Carey, Rebecca, Beg, Marijan, Albert, Maximilian, Bisotti, Marc-Antonio, Cortés-Ortuño, David, Vousden, Mark, Wang, Weiwei, Hovorka, Ondrej, Fangohr, Hans
Format: Article
Language:English
Subjects:
Applied physics
Dependence
Dimensional stability
High density storage
Hypothetical particles
Hysteresis loops
Particle theory
Variable thickness
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Summary:The potential for application of magnetic skyrmions in high density storage devices provides a strong drive to investigate and exploit their stability and manipulability. Through a three-dimensional micromagnetic hysteresis study, we investigate the question of existence of skyrmions in cylindrical nanostructures of variable thickness. We quantify the applied field and thickness dependence of skyrmion states and show that these states can be accessed through relevant practical hysteresis loop measurement protocols. As skyrmionic states have yet to be observed experimentally in confined helimagnetic geometries, our work opens prospects for developing viable hysteresis process-based methodologies to access and observe skyrmionic states.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4962726