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Femtosecond optomagnetism in dielectric antiferromagnets

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2017

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Rasing, Theo

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https://doi.org/10.1088/1402-4896/aa54d4
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Physica Scripta. Institute of Physics Publishing (IOP). 2017, 92(2), 024002. ISSN 0031-8949. eISSN 1402-4896. Available under: doi: 10.1088/1402-4896/aa54d4

Zusammenfassung

Optical femtosecond manipulation of magnetic order is attractive for the development of new concepts for ultrafast magnetic recording. Theoretical and experimental investigations in this research area aim at establishing a physical understanding of magnetic media in light-induced non-equilibrium states. Such a quest requires one to adjust the theory of magnetism, since the thermodynamical concepts of elementary excitations and spin alignment determined by the exchange interaction are not applicable on the femtosecond time-scale after the photo-excitation. Here we report some key milestones concerning the femtosecond optical control of spins in dielectric antiferromagnets, whose spin dynamics is by nature faster than that of ferromagnets and can be triggered even without any laser heating. The recent progress of the opto-magnetic effect in the sub-wavelength regime makes this exciting research area even more promising, in terms of both fundamental breakthroughs and technological perspectives.

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530 Physik

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ultrafast spin dynamics, antiferromagnet, dielectric materials, coherent Raman processes

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ISO 690BOSSINI, Davide, Theo RASING, 2017. Femtosecond optomagnetism in dielectric antiferromagnets. In: Physica Scripta. Institute of Physics Publishing (IOP). 2017, 92(2), 024002. ISSN 0031-8949. eISSN 1402-4896. Available under: doi: 10.1088/1402-4896/aa54d4
BibTex
@article{Bossini2017Femto-53331,
  year={2017},
  doi={10.1088/1402-4896/aa54d4},
  title={Femtosecond optomagnetism in dielectric antiferromagnets},
  number={2},
  volume={92},
  issn={0031-8949},
  journal={Physica Scripta},
  author={Bossini, Davide and Rasing, Theo},
  note={Article Number: 024002}
}
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