Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können am Montag, 6.2. und Dienstag, 7.2. keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted on Monday, Feb. 6 and Tuesday, Feb. 7.)
Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-54668 |
Author: | Bedau, Daniel; Kläui, Mathias; Krzyk, Stephen; Rüdiger, Ulrich; Faini, Giancarlo; Vila, Laurent |
Year of publication: | 2007 |
Published in: | Physical Review Letters ; 99 (2007). - 146601 |
DOI (citable link): | https://dx.doi.org/10.1103/PhysRevLett.99.146601 |
Summary: |
Magnetic domain walls are found to exhibit quasiparticle behavior when subjected to geometrical variations. Because of the spin torque effect such a quasiparticle in a potential well is excited by an ac current leading to a dip in the depinning field at resonance for current densities as low as 2 x 10 power 10 A/m power 2. Independently the resonance frequencies of transverse walls and vortex walls are determined from the dc voltage that develops due to a rectifying effect of the resonant domain wall oscillation. The dependence on the injected current density reveals a strongly nonharmonic oscillation.
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PACS Classification: | 72.30.+q; 85.75.—d; 75.60.Ch; 75.70.Ak |
Subject (DDC): | 530 Physics |
Link to License: | Attribution-NonCommercial-NoDerivs 2.0 Generic |
Bibliography of Konstanz: | Yes |
BEDAU, Daniel, Mathias KLÄUI, Stephen KRZYK, Ulrich RÜDIGER, Giancarlo FAINI, Laurent VILA, 2007. Detection of current-induced resonance of geometrically confined domain walls. In: Physical Review Letters. 99, 146601. Available under: doi: 10.1103/PhysRevLett.99.146601
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Detection_of_current_induced_resonance_of_geometrically_confined_domain_walls.pdf | 507 |