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Superdiffusive Spin Transport as a Mechanism of Ultrafast Demagnetization
Open accessAbstract
We propose a semiclassical model for femtosecond laser-induced demagnetization due to spin-polarized excited electron diffusion in the superdiffusive regime. Our approach treats the finite elapsed time and transport in space between multiple electronic collisions exactly, as well as the presence of several metal films in the sample. Solving the derived transport equation numerically we show that this mechanism accounts for the experimentally observed demagnetization within 200 fs in Ni, without the need to invoke any angular momentum dissipation channel.
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Cited by
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Self-citationTerahertz spin current pulses controlled by magnetic heterostructures
Kampfrath, T., Battiato, M., Maldonado, P., Eilers, G., Nötzold, J., Mährlein, S., Zbarsky, V., Freimuth, F., Mokrousov, Y., Blügel, S., et al. (2013) · Nature Nanotechnology · doi:10.1038/nnano.2013.43 · Cited by 714
Self-citationUltrafast magnetization enhancement in metallic multilayers driven by superdiffusive spin current
Rudolf, D., La-O-Vorakiat, C., Battiato, M., Adam, R., Shaw, J. M., Turgut, E., Maldonado, P., Mathias, S., Grychtol, P., Nembach, H. T., et al. (2012) · Nature Communications · doi:10.1038/ncomms2029 · Cited by 401
Self-citationBroadband Terahertz Generation via the Interface Inverse Rashba-Edelstein Effect
Zhou, C., Liu, Y. P., Wang, Z., Ma, S. J., Jia, M. W., Wu, R. Q., Zhou, L., Zhang, W., Liu, M. K., Wu, Y. Z., et al. (2018) · Physical Review Letters · doi:10.1103/physrevlett.121.086801 · Cited by 199
Ultrafast terahertz magnetometry
Zhang, W., Maldonado, P., Jin, Z., Seifert, T. S., Arabski, J., Schmerber, G., Beaurepaire, E., Bonn, M., Kampfrath, T., Oppeneer, P. M., et al. (2020) · Nature Communications · doi:10.1038/s41467-020-17935-6 · Cited by 110
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Metadata
- Authors
- Battiato, M., Carva, K., & Oppeneer, P. M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2010-07-09
- Volume
- 105
- Issue
- 2
- Pages
- 027203-027203
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1992778371
- Cited by
- 804
- References
- 0
- FWCI
- 10.86
- Type
- journal article
- Language
- en
- Open access
- green
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- Battiato, M., Carva, K., & Oppeneer, P. M. (2010). Superdiffusive Spin Transport as a Mechanism of Ultrafast Demagnetization. Physical Review Letters. https://doi.org/10.1103/physrevlett.105.027203
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