Inertial effects in ultrafast spin dynamics

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2023
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Farle, Michael
Oppeneer, Peter M.
Cherkasskii, Mikhail
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The dynamics of magnetic moments consists of a precession around the magnetic field direction and a relaxation towards the field to minimize the energy. While the magnetic moment and the angular momentum are conventionally assumed to be parallel to each other, at ultrafast time scales their directions become separated due to inertial effects. The inertial dynamics gives rise to additional high-frequency modes in the excitation spectrum of magnetic materials. Here, we review the recent theoretical and experimental advances in this emerging topic and discuss the open challenges and opportunities in the detection and the potential applications of inertial spin dynamics.

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530 Physik
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Inertial spin dynamics ultrafast spin dynamics
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ISO 690MONDAL, Ritwik, Levente RÓZSA, Michael FARLE, Peter M. OPPENEER, Ulrich NOWAK, Mikhail CHERKASSKII, 2023. Inertial effects in ultrafast spin dynamics. In: Journal of Magnetism and Magnetic Materials. Elsevier. 2023, 579, 170830. ISSN 0304-8853. eISSN 1873-4766. Available under: doi: 10.1016/j.jmmm.2023.170830
BibTex
@article{Mondal2023-08-01Inert-67277,
  year={2023},
  doi={10.1016/j.jmmm.2023.170830},
  title={Inertial effects in ultrafast spin dynamics},
  volume={579},
  issn={0304-8853},
  journal={Journal of Magnetism and Magnetic Materials},
  author={Mondal, Ritwik and Rózsa, Levente and Farle, Michael and Oppeneer, Peter M. and Nowak, Ulrich and Cherkasskii, Mikhail},
  note={Article Number: 170830}
}
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