Exploring laser-induced interlayer spin transfer by an all-optical method

A.J. Schellekens, N. Vries, de, J. Lucassen, B. Koopmans

Research output: Contribution to journalArticleAcademicpeer-review

22 Citations (Scopus)
129 Downloads (Pure)

Abstract

We investigate the influence of spin currents during ultrafast laser-induced demagnetization of magnetic bilayer structures by a new all-optical method to measure material- and/or depth-resolved magnetization dynamics. By describing the magneto-optical response of the bilayers in the complex Kerr plane, it is shown that the material-specific magnetization dynamics of the individual layers can be measured by a marginal adjustment to any conventional time-resolved magneto-optical Kerr effect setup. We use this technique to trace superdiffusive spin currents in magnetic Ni/Fe bilayers, providing new insight on its importance to ultrafast laser-induced demagnetization.
Original languageEnglish
Article number104429
Pages (from-to)104429-1/5
JournalPhysical Review B
Volume90
Issue number10
DOIs
Publication statusPublished - 2014

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