Type of Publication: | Journal article |
Author: | Evans, Richard F. L.; Atxitia, Unai; Chantrell, Roy W. |
Year of publication: | 2015 |
Published in: | Physical Review B ; 91 (2015), 14. - 144425. - ISSN 1098-0121. - eISSN 1095-3795 |
DOI (citable link): | https://dx.doi.org/10.1103/PhysRevB.91.144425 |
Summary: |
Atomistic spin model simulations are immensely useful in determining temperature-dependent magnetic properties but are known to give the incorrect dependence of the magnetization on temperature compared to experiment owing to their classical origin. We find a single-parameter rescaling of thermal fluctuations which gives quantitative agreement of the temperature-dependent magnetization between atomistic simulations and experiment for the elemental ferromagnets Ni, Fe, Co, and Gd. Simulating the subpicosecond magnetization dynamics of Ni under the action of a laser pulse, we also find quantitative agreement with experiment in the ultrafast regime. This enables the quantitative determination of temperature-dependent magnetic properties, allowing for accurate simulations of magnetic materials at all temperatures.
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Subject (DDC): | 530 Physics |
Bibliography of Konstanz: | Yes |
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EVANS, Richard F. L., Unai ATXITIA, Roy W. CHANTRELL, 2015. Quantitative simulation of temperature-dependent magnetization dynamics and equilibrium properties of elemental ferromagnets. In: Physical Review B. 91(14), 144425. ISSN 1098-0121. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.91.144425
@article{Evans2015Quant-31116, title={Quantitative simulation of temperature-dependent magnetization dynamics and equilibrium properties of elemental ferromagnets}, year={2015}, doi={10.1103/PhysRevB.91.144425}, number={14}, volume={91}, issn={1098-0121}, journal={Physical Review B}, author={Evans, Richard F. L. and Atxitia, Unai and Chantrell, Roy W.}, note={Article Number: 144425} }
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