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Authors: Gutt, Christian
Sant, Tushar
Ksenzov, Dmitriy
Capotondi, Flavio
Pedersoli, Emanuele
Raimondi, L.
Kikolov, I. P.
Kiskinova, Maya
Jaiswal, Samridh
Jakob, Gerhard
Kläui, Mathias
Zabel, Hartmut
Pietsch, Ullrich
Title: Probing ultrafast changes of spin and charge density profiles with resonant XUV magnetic reflectivity at the free-electron laser FERMI
Online publication date: 20-Aug-2019
Language: english
Abstract: We report the results of resonant magnetic XUV reflectivity experiments performed at the XUV free-electron laser FERMI. Circularly polarized XUV light with the photon energy tuned to the Fe M-2,M-3 edge is used to measure resonant magnetic reflectivities and the corresponding Q-resolved asymmetry of a Permalloy/Ta/Permalloy trilayer film. The asymmetry exhibits ultrafast changes on 240 fs time scales upon pumping with ultrashort IR laser pulses. Depending on the value of the wavevector transfer Q(z), we observe both decreasing and increasing values of the asymmetry parameter, which is attributed to ultrafast changes in the vertical spin and charge density profiles of the trilayer film. (C) 2017 Author(s).
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
URN: urn:nbn:de:hebis:77-publ-592020
Version: Accepted version
Publication type: Zeitschriftenaufsatz
License: In Copyright
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Journal: Structural dynamics
Pages or article number: Art. 055101
Publisher: AIP Publishing LLC
Publisher place: Melville, NY
Issue date: 2017
ISSN: 2329-7778
Publisher URL:
Publisher DOI: 10.1063/1.4990650
Appears in collections:JGU-Publikationen

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