Spin-wave resonance in thin films of nickel-cobalt alloys
- 1 February 1980
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 10 (2) , 309-320
- https://doi.org/10.1088/0305-4608/10/2/017
Abstract
Spin-wave resonance has been observed at 9 GHz in thin films of Ni-Co alloys containing between 0 and 40% Co at temperatures between 4.2K and room temperature. The dispersion relationship, critical angle, linewidth and annealing results suggest that the surface spins are pinned by a surface layer about 100 AA thick. The exchange stiffness constant is found to have a value about a quarter of that obtained by other methods, namely approximately 100 meV A2.Keywords
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