Thermodynamic behavior of nanomagnets with a vortex configuration
| Type of Publication: | Journal article |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-91656 |
| Author: | Wieser, Robert; Usadel, Klaus-Dieter; Nowak, Ulrich |
| Year of publication: | 2006 |
| Published in: | Physical Review B ; 74 (2006). - 94410 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevB.74.094410 |
| Summary: |
The thermodynamic behavior of flat circular nanomagnets with a vortex domain configuration is studied using Langevin dynamics simulations for the dynamical behavior as well as local mean-field calculations for equilibrium properties. Our studies show that the vortex core becomes thermally unstable with increasing temperature, acting like a superparamagnetic system. On time scales where the vortex core remains within one of the metastable states it still has a stronger temperature dependence than the magnetization far away in the bulk of a domain.
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| PACS Classification: | 75.40.Mg; 75.60.Ch; 75.10.Hk |
| Subject (DDC): | 530 Physics |
| Link to License: | In Copyright |
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WIESER, Robert, Klaus-Dieter USADEL, Ulrich NOWAK, 2006. Thermodynamic behavior of nanomagnets with a vortex configuration. In: Physical Review B. 74, 94410. Available under: doi: 10.1103/PhysRevB.74.094410
@article{Wieser2006Therm-9152, title={Thermodynamic behavior of nanomagnets with a vortex configuration}, year={2006}, doi={10.1103/PhysRevB.74.094410}, volume={74}, journal={Physical Review B}, author={Wieser, Robert and Usadel, Klaus-Dieter and Nowak, Ulrich}, note={Article Number: 94410} }
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