Publication detail
Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys
Günther, S. Spezzani, C. Ciprian, R. Grazioli, C. Ressel, B. Coreno, M. Poletto, L. Miotti, P. Sacchi, M. Panaccione, G. Uhlíř, V. Fullerton, E. De Ninno, G. Back, C.
English title
Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys
Type
WoS Article
Language
en
Original abstract
We use element-resolved IR-pump/extreme ultraviolet-probe experiments to disentangle the ultrafast interplay of the magnetic sublattices of an ordered crystalline magnetic alloy. As a paradigmatic example, we investigate the case of the FeRh alloy, which shows a delayed response for the different components. Furthermore, a detailed time-resolved magneto-optic study shows that the data can be analyzed by only assuming Elliot-Yafet-like scattering, as the underlying mechanism for ultrafast demagnetization, resulting in an unexpected nonmonotonic dependence of the spin-flip rate, as a function of quenching.
Keywords in English
ultrafast demagnetization; pump-probe; spin-flip scattering
Released
2014-11-21
ISSN
1098-0121
Journal
PHYSICAL REVIEW B
Volume
90
Number
18
Pages from–to
180407-1–180407-5
Pages count
5