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DMI-Gradient-Driven Skyrmion Motion DMI-Gradient-Driven Skyrmion Motion AITranslate

Ilya O. Gorshkov; Roman V. Gorev; Maksim V. Sapozhnikov; Oleg G. Udalov
Nizhny Novgorod State Technical University;Institute for physics of microstructures RAS; Russia 603950|Nizhny Novgorod State University; Russia 603950|California State University Northridge
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Publisher: ACS
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Abstract AITranslate

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.

KeyWords AITranslate

skyrmion Dzyaloshinskii−Moriya interaction motion gradient strain magnetic film stability anisotropy
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DOI：https://doi.org/10.1021/acsaelm.2c00404

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Citation Information:

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.

quote

GB/T 7714-2015 [1] Ilya O. Gorshkov, Roman V. Gorev, Maksim V. Sapozhnikov, et al. ACS Applied Electronic Materials, 2022(4). DOI:10.1021/acsaelm.2c00404.
MLA [1] Ilya O. Gorshkov, et al., ACS Applied Electronic Materials, no. 4, 2022, https://doi.org/10.1021/acsaelm.2c00404.
APA [1] Ilya O. Gorshkov, Roman V. Gorev, Maksim V. Sapozhnikov, & Oleg G. Udalov. (2022). ACS Applied Electronic Materials(4). https://doi.org/10.1021/acsaelm.2c00404
IEEE [1] Ilya O. Gorshkov, Roman V. Gorev, Maksim V. Sapozhnikov, and Oleg G. Udalov, ACS Applied Electronic Materials, no. 4, 2022, doi: 10.1021/acsaelm.2c00404. keywords: {skyrmion Dzyaloshinskii−Moriya interaction motion gradient strain magnetic film stability anisotropy}