Collective spin waves in Fe-Pd and Fe-W multilayer structures
- 15 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (12), 9000-9003
- https://doi.org/10.1103/physrevb.34.9000
Abstract
The complete, theoretically predicted band of collective magnetostatic spin-wave excitations has been observed for the first time in Fe-Pd and Fe-W multilayer structures by Brillouin scattering. Despite the large number of bilayers (49-90) discrete spin-wave modes due to a quantization of the momentum perpendicular to the stack have been observed in the upper half of the band. For Fe-Pd multilayer structures the saturation magnetization shows a monotonic decrease of up to 30% from that of the bulk Fe for modulation wavelengths down to 33 ÅA.Keywords
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