2005/09/22 by V. K. Dugaev, V. R. Vieira, P. D. Sacramento +6 · 28 citations
Materials Science · Mathematics · Physics and Astronomy · #Condensed matter physics #Current (fluid) #Domain (mathematical analysis) #Domain wall (magnetism) #Electric current #Ferromagnetism #Geometry #Magnetic anisotropy #Magnetic domain #Magnetic field #Magnetic properties of thin films #Magnetization #Mathematical analysis #Mathematics #Mechanics #Physics #Physics of Superconductivity and Magnetism #Plane (geometry) #Spin-transfer torque #Torque #ZnO doping and properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.74.054403
published in Physical Review B 74(5) (American Physical Society) · 12 pages with 6 figures
arxiv created 2005/09/22 · openalex publication_date 2006/08/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The current-induced motion of a magnetic domain wall in a quasi-one-dimensional ferromagnet with both easy-axis and easy-plane anisotropies is studied theoretically. We analyze the spin-transfer-induced torque on a sharp domain wall upon the flow of a dc electric current in the wire. The torque is shown to have two components; one of them acts as a driving force on the domain wall. The other torque component leads to changes to the domain-wall shape in that it forces the magnetic moments to diverge from the easy plane.