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Title: Dzyaloshinskii-Moriya domain wall resonance in ferromagnetic nanowires with a spin-transfer torque

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.
Authors:
; ;  [1] ;  [2]
  1. Department of Applied Physics, Hebei University of Technology, Tianjin 300401 (China)
  2. School of Physics and Electronics, Hunan University, Changsha 410082 (China)
Publication Date:
OSTI Identifier:
22402979
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; AMPLITUDES; CRITICAL CURRENT; CURRENT DENSITY; DOMAIN STRUCTURE; FERROMAGNETIC MATERIALS; FERROMAGNETISM; FRICTION; NANOWIRES; POTENTIALS; RESONANCE; SPIN; TORQUE