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Phase-resolved pulsed precessional motion at a Schottky barrier

DOI to cite this document:
Buess, Matthias ; Knowles, T. ; Ramsperger, U. ; Pescia, D. ; Back, C. H.
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Date of publication of this fulltext: 05 Aug 2009 13:34


The precessional motion of the magnetization is excited by an ultrashort magnetic-field pulse at a Schottky barrier containing a ferromagnetic film. The precessional frequency, measured as a function of a bias field of variable strength and direction by time resolved Kerr microscopy, is accurately reproduced by a model based on the theory of ferromagnetic resonance. The spatially resolved precessional phase reveals a jump related to the chiral character of the exciting magnetic-field pulse.

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