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Time-resolved study of the increased magnetization precession frequency in Fe wires

Korn, Tobias ; Giesen, F. ; Podbielski, D. ; Ravlic, D. ; Schüller, Christian ; Grundler, D.



Abstract

We have performed time-resolved pump–probe measurements on arrays of View the MathML source-wide Fe wires and on a View the MathML source-wide Fe stripe. A photoconductive switch was used as a source of fast-risetime magnetic field pulses. The magnetization dynamics were detected by the magneto-optical Kerr effect. We find that the ferromagnetic resonance frequency of the wires is about 16 GHz ...

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