Publikation: Quantitative Determination of the Nonlinear Pinning Potential for a Magnetic Domain Wall
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Physical Review Letters. 2008, 101, 256602. Available under: doi: 10.1103/PhysRevLett.101.256602
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Using microwave currents, we excite resonances of geometrically confined pinned domain walls, detecting the resonance by the rectification of the microwave current. By applying magnetic fields, the resonance frequency of the domain wall oscillator can be tuned over a wide range. Increasing the power leads to a redshift due to the nonlinearity of the system. From this frequency shift, we directly deduce the quantitative shape of the potential, so that a complete characterization of the pinning potential is obtained.
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BEDAU, Daniel, Mathias KLÄUI, M. T. HUA, Stephen KRZYK, Ulrich RÜDIGER, Giancarlo FAINI, Laurent VILA, 2008. Quantitative Determination of the Nonlinear Pinning Potential for a Magnetic Domain Wall. In: Physical Review Letters. 2008, 101, 256602. Available under: doi: 10.1103/PhysRevLett.101.256602BibTex
@article{Bedau2008Quant-5104,
year={2008},
doi={10.1103/PhysRevLett.101.256602},
title={Quantitative Determination of the Nonlinear Pinning Potential for a Magnetic Domain Wall},
volume={101},
journal={Physical Review Letters},
author={Bedau, Daniel and Kläui, Mathias and Hua, M. T. and Krzyk, Stephen and Rüdiger, Ulrich and Faini, Giancarlo and Vila, Laurent},
note={Article Number: 256602}
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<dcterms:abstract xml:lang="eng">Using microwave currents, we excite resonances of geometrically confined pinned domain walls, detecting the resonance by the rectification of the microwave current. By applying magnetic fields, the resonance frequency of the domain wall oscillator can be tuned over a wide range. Increasing the power leads to a redshift due to the nonlinearity of the system. From this frequency shift, we directly deduce the quantitative shape of the potential, so that a complete characterization of the pinning potential is obtained.</dcterms:abstract>
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