Detail publikace

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.

Originální název

Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

ultrafast demagnetization; pump-probe; spin-flip scattering

Autoři

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.

Vydáno

21. 11. 2014

ISSN

1098-0121

Periodikum

PHYSICAL REVIEW B

Ročník

90

Číslo

18

Stát

Spojené státy americké

Strany od

180407-1

Strany do

180407-5

Strany počet

5