Abstract
Ultrafast photo-induced rotation and ellipticity are observed in multiferroic hexagonal manganite YMnO3, which we attribute to the optical spin alignment and orientation within the charge transfer transition A1–E1 at ~1.6 eV. The recombination decay time of ~500 fs and the Raman coherence time of ~5 fs have been determined. We attribute the ultrashort coherence time to the strong electron Coulomb interaction.
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Acknowledgments
This work was supported by the Deutsche Forschungsgemeinschaft, the Russian Foundation for Basic Research (13-02-00754), the Government of the Russian Federation (14.B25.31.0025), V.V.P. thanks the Alexander-von Humboldt Foundation.
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Pohl, M. et al. (2015). Ultrafast Photoinduced Linear and Circular Anisotropy in Multiferroic Manganite YMnO3 . In: Bigot, JY., Hübner, W., Rasing, T., Chantrell, R. (eds) Ultrafast Magnetism I. Springer Proceedings in Physics, vol 159. Springer, Cham. https://doi.org/10.1007/978-3-319-07743-7_66
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DOI: https://doi.org/10.1007/978-3-319-07743-7_66
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