Field-driven oscillation and rotation of a multiskyrmion cluster in a nanodisk
Abstract
The field-driven magnetization dynamics of a multiskyrmion cluster in a nanodisk is investigated by micromagnetic simulation and analytical calculation. Under a weak in-plane static magnetic field, the multiskyrmion cluster shows an oscillatory motion around an equilibrium position, which resembles the dynamical behavior of the conventional torsional pendulum. We show that this oscillation is induced by restoring torque acting on the skyrmion generated by the potential energy determined by the angle of the skyrmion orientation. Moreover, the multiskyrmion cluster can be driven to rotate by an in-plane rotating magnetic field. The rotation directions and frequencies are fully determined by the number of the skyrmions.
- Authors:
-
- Northeastern Univ., Shenyang (China). College of Sciences
- Chinese Academy of Sciences (CAS), Hefei (China). High Magnetic Field Lab.; Nanjing Univ. (China). Collaborative Innovation Center of Advanced Microstructures
- Univ. of New Hampshire, Durham, NH (United States). Dept. of Physics. Materials Science Program
- Publication Date:
- Research Org.:
- Univ. of New Hampshire, Durham, NH (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1535887
- Alternate Identifier(s):
- OSTI ID: 1353281
- Grant/Contract Number:
- SC0016424
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 13; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; micromagnetic modeling; skyrmions; micromagnetism
Citation Formats
Liu, Yan, Yan, Huan, Jia, Min, Du, Haifeng, Du, An, and Zang, Jiadong. Field-driven oscillation and rotation of a multiskyrmion cluster in a nanodisk. United States: N. p., 2017.
Web. doi:10.1103/physrevb.95.134442.
Liu, Yan, Yan, Huan, Jia, Min, Du, Haifeng, Du, An, & Zang, Jiadong. Field-driven oscillation and rotation of a multiskyrmion cluster in a nanodisk. United States. https://doi.org/10.1103/physrevb.95.134442
Liu, Yan, Yan, Huan, Jia, Min, Du, Haifeng, Du, An, and Zang, Jiadong. Wed .
"Field-driven oscillation and rotation of a multiskyrmion cluster in a nanodisk". United States. https://doi.org/10.1103/physrevb.95.134442. https://www.osti.gov/servlets/purl/1535887.
@article{osti_1535887,
title = {Field-driven oscillation and rotation of a multiskyrmion cluster in a nanodisk},
author = {Liu, Yan and Yan, Huan and Jia, Min and Du, Haifeng and Du, An and Zang, Jiadong},
abstractNote = {The field-driven magnetization dynamics of a multiskyrmion cluster in a nanodisk is investigated by micromagnetic simulation and analytical calculation. Under a weak in-plane static magnetic field, the multiskyrmion cluster shows an oscillatory motion around an equilibrium position, which resembles the dynamical behavior of the conventional torsional pendulum. We show that this oscillation is induced by restoring torque acting on the skyrmion generated by the potential energy determined by the angle of the skyrmion orientation. Moreover, the multiskyrmion cluster can be driven to rotate by an in-plane rotating magnetic field. The rotation directions and frequencies are fully determined by the number of the skyrmions.},
doi = {10.1103/physrevb.95.134442},
journal = {Physical Review. B},
number = 13,
volume = 95,
place = {United States},
year = {Wed Apr 26 00:00:00 EDT 2017},
month = {Wed Apr 26 00:00:00 EDT 2017}
}
Web of Science
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