Thermoelectric detection of ferromagnetic resonance of a nanoscale ferromagnet

We present thermoelectric measurements of the heat dissipated due to ferromagnetic resonance of a Permalloy strip. A microwave magnetic field, produced by an on-chip coplanar strip waveguide, is used to drive the magnetization precession. The generated heat is detected via Seebeck measurements on a...

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Bibliographic Details
Published inarXiv.org
Main Authors Bakker, F L, Flipse, J, Slachter, A, Wagenaar, D, van Wees, B J
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 05.08.2011
Subjects
Ferromagnetic resonance
Ferromagnetism
Ferrous alloys
Finite element method
Insulators
Magnetic alloys
Physics - Mesoscale and Nanoscale Physics
Thermocouples
Thermoelectricity
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Summary:We present thermoelectric measurements of the heat dissipated due to ferromagnetic resonance of a Permalloy strip. A microwave magnetic field, produced by an on-chip coplanar strip waveguide, is used to drive the magnetization precession. The generated heat is detected via Seebeck measurements on a thermocouple connected to the ferromagnet. The observed resonance peak shape is in agreement with the Landau-Lifshitz-Gilbert equation and is compared with thermoelectric finite element modeling. Unlike other methods, this technique is not restricted to electrically conductive media and is therefore also applicable to for instance ferromagnetic insulators.
ISSN:2331-8422
DOI:10.48550/arxiv.1108.1286