Laser-Induced Spatiotemporal Dynamics of Magnetic Films

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38 Citations (Scopus)

Abstract

We present a theory for the coherent magnetization dynamics induced by a focused ultrafast laser beam in magnetic films, taking into account nonthermal (inverse Faraday effect) and thermal (heating) actuation. The dynamic conversion between spin waves and phonons is induced by the magnetoelastic coupling that allows efficient propagation of angular momentum. The anisotropy of the magnetoelastic coupling renders characteristic angle dependences of the magnetization propagation that are strikingly different for thermal and nonthermal actuation.

Original languageEnglish
Article number197201
JournalPhysical review letters
Volume115
Issue number19
DOIs
Publication statusPublished - 2015 Nov 4

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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