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  Nanoscale interface confinement of ultrafast spin transfer torque driving non-uniform spin dynamics

Razdolski, I., Alekhin, A., Ilin, N., Meyburg, J. P., Roddatis, V., Diesing, D., et al. (2017). Nanoscale interface confinement of ultrafast spin transfer torque driving non-uniform spin dynamics. Nature Communications, 8: 15007. doi:10.1038/ncomms15007.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-34AE-2 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-34B2-5
Genre: Journal Article

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 Creators:
Razdolski, Ilya1, Author           
Alekhin, Alexandr1, Author           
Ilin, Nikita1, 2, Author           
Meyburg, Jan P.3, Author
Roddatis, Vladimir4, Author
Diesing, Detlef3, Author
Bovensiepen, Uwe5, Author           
Melnikov, Alexey1, 6, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Moscow Technological University MIREA, Vernadsky Ave. 78, 119454 Moscow, Russia, ou_persistent22              
3Faculty of Chemistry, University of Duisburg-Essen,, Universitätsstr. 5, 45141 Essen, Germany, ou_persistent22              
4Universität Göttingen, Institut für Materialphysik, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany, ou_persistent22              
5Universität Diusburg-Essen, Fakultät für Physik, Lotharstr. 1, 47048 Duisburg, ou_persistent22              
6Institute of Physics, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 3, 06120 Halle, Germany, ou_persistent22              

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 Abstract: Spintronics had a widespread impact over the past decades due to transferring information by spin rather than electric currents. Its further development requires miniaturization and reduction of characteristic timescales of spin dynamics combining the sub-nanometre spatial and femtosecond temporal ranges. These demands shift the focus of interest towards the fundamental open question of the interaction of femtosecond spin current (SC) pulses with a ferromagnet (FM). The spatio-temporal properties of the impulsive spin transfer torque exerted by ultrashort SC pulses on the FM open the time domain for probing non-uniform magnetization dynamics. Here we employ laser-generated ultrashort SC pulses for driving ultrafast spin dynamics in FM and analysing its transient local source. Transverse spins injected into FM excite inhomogeneous high-frequency spin dynamics up to 0.6 THz, indicating that the perturbation of the FM magnetization is confined to 2 nm.

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Language(s): eng - English
 Dates: 2016-08-012017-02-152017-04-13
 Publication Status: Published online
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/ncomms15007
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: 5 Volume / Issue: 8 Sequence Number: 15007 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723