DocumentCode
848970
Title
Smart measurement setup for spin-wave linewidth ΔHk
Author
Hoeppe, Ulrich
Author_Institution
Adv. Ferrite Technol. GmbH, Backnang, Germany
Volume
38
Issue
5
fYear
2002
fDate
9/1/2002 12:00:00 AM
Firstpage
3126
Lastpage
3128
Abstract
A new setup for measuring spinwave linewidth ΔHk is described. By use of a dielectric resonator instead of a standard waveguide resonator it is possible to realize much higher microwave magnetic fields at the sample position. Due to the smaller size of the resonator and a more efficient field distribution, the necessary microwave power can be reduced by nearly a factor of 300. Therefore, it is possible to measure spinwave linewidth ΔHk up to 20 Oe (1.6 kA/m) with only 20-W microwave power.
Keywords
dielectric resonators; ferrite devices; ferrites; ferromagnetic resonance; magnetic microwave devices; microwave measurement; spectral line breadth; 20 W; Bessel functions; Suhl instabilities; cylindrical cavity; dielectric resonator; dipole field; efficient field distribution; higher microwave magnetic fields; magnetic microwave devices; parallel pump; perpendicular pump; puck resonator; shielded resonator; smart measurement setup; spinwave linewidth measurements; transmission-type measurements; Dielectric measurements; Ferrites; Frequency estimation; Magnetic field measurement; Magnetic materials; Microwave devices; Microwave magnetics; Microwave measurements; Power measurement; Tellurium;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2002.802490
Filename
1042472
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