Detection of current-induced resonance of geometrically confined domain walls
| 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: | In Copyright |
| Bibliography of Konstanz: | Yes |
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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
@article{Bedau2007Detec-4792, title={Detection of current-induced resonance of geometrically confined domain walls}, year={2007}, doi={10.1103/PhysRevLett.99.146601}, volume={99}, journal={Physical Review Letters}, author={Bedau, Daniel and Kläui, Mathias and Krzyk, Stephen and Rüdiger, Ulrich and Faini, Giancarlo and Vila, Laurent}, note={Article Number: 146601} }
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