Field-driven oscillation and rotation of a multiskyrmion cluster in a nanodisk
- 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
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.
- Research Organization:
- Univ. of New Hampshire, Durham, NH (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0016424
- OSTI ID:
- 1535887
- Alternate ID(s):
- OSTI ID: 1353281
- Journal Information:
- Physical Review. B, Vol. 95, Issue 13; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Perspective: Magnetic skyrmions—Overview of recent progress in an active research field
|
journal | December 2018 |
Regulating the magnetic skyrmion in a confined nanochannel under a gradient magnetic field
|
journal | July 2019 |
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