2003/12/18 by M. Covington, A. Rebei, G. J. Parker +1
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Field (mathematics) #Magnetic field #Magnetic properties of thin films #Magnetization #Micromagnetics #Perpendicular #Quantum and electron transport phenomena #Spin (aerodynamics) #Spin valve #Spin-transfer torque #Torque #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.1707227
10 pages, 4 figures
arxiv created 2003/12/18 · openalex publication_date 2004/04/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present experimental and numerical micromagnetic data on the effect of spin momentum transfer in current perpendicular to the plane spin valves. Starting from a configuration with orthogonal free- and pinned-layer magnetizations, the free-layer magnetization exhibits abrupt current-induced switching that is qualitatively consistent with the spin torque model. When operating the spin valve as a field sensor, spin transfer can produce a change in resistance that mimics an effective magnetic field and induce magnetic instability that requires a larger bias field in order to stabilize the device.