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Local Excitation of Ferromagnetic Resonance and Its Spatially Resolved Detection With an Open-Ended Radio-Frequency Probe

A local excitation of ferromagnetic resonance (FMR) and its detection were performed by using an open-ended radio-frequency (RF) probe. The RF probe is composed of a coaxial cable transmitting broadband RF waves over 10 GHz and a sharp metal tip attached to its end. In the reflection spectrum ( S 11...

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Published in:IEEE magnetics letters 2010-01, Vol.1, p.3500104-3500104
Main Authors: Toshu An, Nobuhito Ohnishi, Toyoaki Eguchi, Yukio Hasegawa, Kabos, P.
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Language:English
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description A local excitation of ferromagnetic resonance (FMR) and its detection were performed by using an open-ended radio-frequency (RF) probe. The RF probe is composed of a coaxial cable transmitting broadband RF waves over 10 GHz and a sharp metal tip attached to its end. In the reflection spectrum ( S 11 ) taken on a polycrystalline yttrium iron garnet disk, three kinds of FMR absorption signals were observed. Intensity of the three signals showed strong spatial dependences over the sample, demonstrating the potential of the local probe for spatially resolved FMR microscopy.
doi_str_mv 10.1109/LMAG.2010.2040247
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identifier ISSN: 1949-307X
ispartof IEEE magnetics letters, 2010-01, Vol.1, p.3500104-3500104
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1949-3088
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source IEEE Electronic Library (IEL) Journals
subjects Absorption
Coaxial cables
Excitation
ferrites
Ferromagnetic resonance
Garnets
Iron
Magnetic resonance
Magnetodynamics
magnetostatic waves
Microscopy
microwave imaging
Probes
Radio frequencies
Radio frequency
Reflection
Spatial resolution
Transmission
Yttrium
title Local Excitation of Ferromagnetic Resonance and Its Spatially Resolved Detection With an Open-Ended Radio-Frequency Probe
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