Current induced domain wall dynamics in the presence of spin orbit torques

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4860946· OSTI ID:22273909

Buda-Prejbeanu, L. D.; Jué, E.; Miron, I. M.; Gaudin, G. ^[1]

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1. SPINTEC, CEA/CNRS/UJF/INPG, INAC, 38054 Grenoble Cedex 9 (France)

Current induced domain wall (DW) motion in perpendicularly magnetized nanostripes in the presence of spin orbit torques is studied. We show using micromagnetic simulations that the direction of the current induced DW motion and the associated DW velocity depend on the relative values of the field like torque (FLT) and the Slonczewski like torques (SLT). The results are well explained by a collective coordinate model which is used to draw a phase diagram of the DW dynamics as a function of the FLT and the SLT. We show that a large increase in the DW velocity can be reached by a proper tuning of both torques.

• OSTI ID: 22273909
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
COMPUTERIZED SIMULATION
DOMAIN STRUCTURE
ELECTRIC CURRENTS
L-S COUPLING
MAGNETISM
NANOSTRUCTURES
PHASE DIAGRAMS
SPIN
TORQUE
VELOCITY