Probing ultrafast changes of spin and charge density profiles with resonant XUV magnetic reflectivity at the free-electron laser FERMI

Gutt C, Sant T, Ksenzov D, Capotondi F, Pedersoli E, Raimondi L, Nikolov IP, Kiskinova M, Jaiswal S, Jakob G, Klaeui M, Zabel H, Pietsch U (2017)

Publication Type: Journal article

Publication year: 2017

Journal

STRUCTURAL DYNAMICS

Book Volume: 4

Article Number: 055101

Journal Issue: 5

DOI: 10.1063/1.4990650

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 M2,3 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 Qz, 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.

Involved external institutions

Universität Siegen DE Germany (DE) Elettra Sincrotrone Trieste S.C.p.A. IT Italy (IT) Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE)

How to cite

APA:

Gutt, C., Sant, T., Ksenzov, D., Capotondi, F., Pedersoli, E., Raimondi, L.,... Pietsch, U. (2017). Probing ultrafast changes of spin and charge density profiles with resonant XUV magnetic reflectivity at the free-electron laser FERMI. STRUCTURAL DYNAMICS, 4(5). https://doi.org/10.1063/1.4990650

MLA:

Gutt, Christian, et al. "Probing ultrafast changes of spin and charge density profiles with resonant XUV magnetic reflectivity at the free-electron laser FERMI." STRUCTURAL DYNAMICS 4.5 (2017).

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