On-chip detection of ferromagnetic resonance of a single submicron permalloy strip
M. V. Costache, M. Sladkov, C. H. van der Wal, B. J. van Wees
Abstract
We measured ferromagnetic resonance of a single submicron ferromagnetic strip, embedded in an on-chip microwave transmission line device. The method used is based on detection of the oscillating magnetic flux due to the magnetization dynamics, with an inductive pick-up loop. The dependence of the resonance frequency on applied static magnetic field agrees very well with the Kittel formula, demonstrating that the uniform magnetization precession mode is being driven.
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