Journal
EPL
Volume 84, Issue 2, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1209/0295-5075/84/27009
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Funding
- Western Institute of Nanoelectronics (WIN)
- Focus Center Research Program (FCRP) of Functional Engineered Nano Architectonics (FENA)
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Different to conventional ferromagnetic resonance methods, we use the phase-shift of spin-wave propagation to investigate spin-wave in conducting ferromagnetic thin films. Spin-wave wave vector (or wave number) k, a key parameter in the study of spin-wave dispersion and propagation, is extracted from the ratio of the phase-shift to the propagation distance and the ratio of the intercepts to the slopes of the plot of frequency square (f(2)) vs. the bias field (H). The wave vectors calculated by both methods are in good agreement. The in-plane anisotropy field H(k) and saturation magnetization M(S) can also be extracted from the phase-shift map. Copyright (c) EPLA, 2008
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