Dzyaloshinskii-Moriya domain wall resonance in ferromagnetic nanowires with a spin-transfer torque
Journal Article
·
· Journal of Applied Physics
- Department of Applied Physics, Hebei University of Technology, Tianjin 300401 (China)
- School of Physics and Electronics, Hunan University, Changsha 410082 (China)
We theoretically investigate the current-induced domain wall resonance in ferromagnetic nanowires with a Dzyaloshinskii-Moriya interaction. The adiabatic and nonadiabatic torques distort the wall's internal structure and exert a global pressure on the wall. An effective Newton's equation is obtained analytically for a domain wall moving in one-dimensional potential and subject to a viscous friction and a driving force. Our results demonstrate that the Dzyaloshinskii-Moriya interaction affects the critical current density for depinning the wall, resonance frequency, and amplitude.
- OSTI ID:
- 22402979
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 17 Vol. 117; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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