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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Liebing, N. Serrano-Guisan, S. Caprile, A. Olivetti, E.S. Celegato, F. Pasquale, M. Muller, A. Schumacher, H.W. |
| Copyright Year | 1965 |
| Abstract | We study the precession frequency and effective damping of patterned permalloy thin films of different geometry using integrated inductive test structures. The test structures consist of coplanar wave guides fabricated onto patterned permalloy stripes of different geometry. The width, length and position of the permalloy stripe with respect to the center conductor of the wave guide are varied. The precession frequency and effective damping of the different devices is derived by inductive measurements in time and frequency domain in in-plane magnetic fields. While the precession frequencies do not reveal a significant dependence on the sample geometry we find a decrease of the measured damping with increasing width of the permalloy centered underneath the center conductor of the coplanar wave guide. We attribute this effect to an additional damping contribution due to inhomogeneous line broadening at the edges of the permalloy stripes which does not contribute to the inductive signal provided the permalloy stripe is wider than the center conductor. Consequences for inductive determination of the effective damping using such integrated reference samples are discussed. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2502 |
| Ending Page | 2504 |
| Page Count | 3 |
| File Size | 116941 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 47 |
| Issue Number | 10 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Damping Coplanar waveguides Frequency domain analysis Magnetic resonance Magnetomechanical effects Magnetization VNA-FMR Ferromagnetic resonance Gilbert damping magnetic films magnetic materials magnetic variables measurements nanostructured materials permalloy PIMM thin films |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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