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

Physical Review B - Condensed Matter and Materials Physics, ISSN: 1550-235X, Vol: 90, Issue: 18
2014
  • 29
    Citations
  • 0
    Usage
  • 53
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    29
    • Citation Indexes
      29
  • Captures
    53

Article Description

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.

Bibliographic Details

Günther, Stefan; Spezzani, Carlo; Ciprian, Roberta; Grazioli, Cesare; Ressel, Barbara; Coreno, Marcello; Poletto, Luca; Miotti, Paolo; Sacchi, Maurizio; Panaccione, Giancarlo; Uhlíř, Vojtěch; Fullerton, Eric E.; De Ninno, Giovanni; Back, Christian H.

American Physical Society (APS)

Materials Science; Physics and Astronomy

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