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Dissipation of spin angular momentum in magnetic switching

URN to cite this document:
urn:nbn:de:bvb:355-epub-149404
Stamm, C ; Tudosa, I ; Siegmann, HC ; Stohr, J ; Dobin, AY ; Woltersdorf, Georg ; Heinrich, B ; Vaterlaus, A
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Date of publication of this fulltext: 27 May 2010 09:28


Abstract

Applying one ultrashort magnetic field pulse, we observe up to 10 precessional switches of the magnetization direction in single
crystalline Fe films of 10 and 15 atomic layers. We find that the rate
at which angular momentum is dissipated in uniform large angle spin
precession increases with time and film thickness, surpassing the
intrinsic ferromagnetic resonance spin lattice relaxation of Fe by
nearly an order of magnitude.


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