DMI-Gradient-Driven Skyrmion Motion
Source abstract
Abstract
We study skyrmion control in an artificial ultrathin magnetic film with perpendicular anisotropy. We simulate numerically the skyrmion motion induced by spatial gradient of the Dzyaloshinskii–Moriya interaction (DMI) strength. We show that creating the DMI gradient is an efficient way to move skyrmions. In particular, experimentally achievable DMI gradients can be as effective as spin-polarized electric currents with 1011 A/m2 density. At that, the DMI gradient induces a much weaker skyrmion Hall effect. The DMI gradient can be created with a mechanical strain in a ferroelectric–ferromagnetic hybrid system. This opens an alternative way to manipulate skyrmions.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic properties of thin films · Multiferroics and related materials · Physics of Superconductivity and Magnetism
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Nizhny Novgorod State Technical University, 24 minin Street, Nizhny Novgorod, Russia 603000
Institute for physics of microstructures RAS, GSP-105, Nizhny Novgorod, Russia 603950
Nizhny Novgorod State University, 23 Prospekt Gagarina, Nizhny Novgorod, Russia 603022
California State University Northridge, Northridge, California 91330, United States
Funding
Russian Science Foundation · National Science Foundation
References (41)
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