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Ultrafast Spin Dynamics in Heusler Alloys

ORAL

Abstract

We present new ultrafast spin and electron dynamics for Heusler alloys uncovered using an extreme ultraviolet (EUV) probe. Heusler alloys represent a diverse group of materials whose constituent elements can be chosen to tune electronic and magnetic properties. By addressing M-edge resonances with an extreme UV probe we can perform element specific magneto-optical Kerr effect (MOKE) measurements on the natural timescales of the shortest processes in Heusler alloys. The ultrafast responses of these materials exhibit unique signatures, such as ultrafast spin transfer, that depends on the band structure of their magnetic sublattices.

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Presenters

  • Sinead A Ryan

    JILA

Authors

  • Sinead A Ryan

    JILA

  • Peter C Johnsen

    JILA

  • Henrike Probst

    University of Goettingen

  • Mohamed F Elhanoty

    Uppsala University

  • Peter Elliott

    Max Planck Inst Microstructure

  • Anya Grafov

    JILA, University of Colorado Boulder

  • Daniel Steil

    University of Goettingen

  • Anna Delin

    KTH Royal Institute of Technology, Sweden, KTH Royal Institute of Technology, KTH royal institute of technology

  • Oscar Grånäs

    Uppsala University

  • Olle Eriksson

    Uppsala University, Uppsala University, Sweden, Örebro University, Sweden

  • Sangeeta Sharma

    Max Born Institute, Max Born Institute, Berlin

  • Stefan Mathias

    University of Goettingen

  • Henry C Kapteyn

    University of Colorado, Boulder, University of Colorado, JILA, University of Colorado, Boulder

  • Margaret M Murnane

    JILA, JILA, University of Colorado, Boulder