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Publication Citation: Effects of disorder and internal dynamics on vortex wall propagation

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Author(s): Hongki Min; Robert D. McMichael; Michael J. Donahue; Jacques Miltat; Mark D. Stiles;
Title: Effects of disorder and internal dynamics on vortex wall propagation
Published: May 26, 2010
Abstract: Experimental measurements of domain wall propagation are typically interpreted by comparison to ideal models that ignore the effects of extrinsic disorder and the internal dynamics of domain wall structures. Using micromagnetic simulations we study vortex wall propagation induced by fields or currents in the presence of random disorder and show that the results can be understood in terms of an effective damping that increases with the disorder.
Citation: Physical Review Letters
Volume: 104
Pages: 4 pp.
Keywords: Spintronics; Domain wall dynamics; Disorder
Research Areas: Nanophysics, Nanostructured Materials, Condensed Matter Physics, Nanotechnology, Physics
PDF version: PDF Document Click here to retrieve PDF version of paper (340KB)