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.

Anglický 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

en

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.

Anglický 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 anglicky

ultrafast demagnetization; pump-probe; spin-flip scattering

Vydáno

21.11.2014

ISSN

1098-0121

Ročník

90

Číslo

18

Strany od–do

180407-1–180407-5

Počet stran

5

BIBTEX


@article{BUT155244,
  author="Vojtěch {Uhlíř},
  title="Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys",
  year="2014",
  volume="90",
  number="18",
  month="November",
  pages="180407-1--180407-5",
  issn="1098-0121"
}