TITLE

Tunable steady-state domain wall oscillator with perpendicular magnetic anisotropy

AUTHOR(S)
Bisig, A.; Heyne, L.; Boulle, O.; Kläui, M.
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/19/2009, Vol. 95 Issue 16, p162504
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We theoretically study domain wall oscillations upon the injection of a dc current through a geometrically constrained wire with perpendicular magnetic anisotropy. The frequency spectrum of the oscillation can be tuned by the injected current density and additionally by the application of an external magnetic field. Our analytical calculations are supported by micromagnetic simulations based on the Landau–Lifshitz–Gilbert equation. The simple concept of our localized steady-state oscillator might prove useful as a nanoscale microwave generator with possible applications in telecommunications or for rf-assisted writing in magnetic hard drives.
ACCESSION #
44837236

 

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