Creation and Destruction of Skyrmions via Electrical Modulation of Local Magnetic Anisotropy in Magnetic Thin Films
| Autor: | Yuriy G. Semenov, Xinyi Xu, Xilai Li, Ki Wook Kim |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Condensed matter physics Skyrmion General Physics and Astronomy 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology 01 natural sciences Magnetic anisotropy Beyond CMOS Ferromagnetism Modulation 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Thin film 010306 general physics 0210 nano-technology Spin-½ |
| Zdroj: | Physical Review Applied. 11 |
| ISSN: | 2331-7019 |
| DOI: | 10.1103/physrevapplied.11.024051 |
| Popis: | Magnetic skyrmions are topologically protected spin textures that are promising as carriers of information for computing and storage beyond CMOS-based systems. An electrostatic approach to creating a skyrmion can be more energy efficient than those based on a driving current. In this work, formation and dissolution of N\'eel skyrmions are examined theoretically via electrical modulation of magnetic anisotropy, in both ferromagnetic and antiferromagnetic structures. Simulations clearly illustrate the feasibility of the mechanism, enabling local control for versatility in applications. Also noteworthy is that the dynamical processes involved are much faster in antiferromagnetic materials. |
| Databáze: | OpenAIRE |
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