Abstract
Gilbert damping is reported in perpendicularly magnetized Ni/Co multilayer films with Pt buffer and capping layers, and investigated through the time-resolved magneto-optical Kerr effect under various applied magnetic field strengths and directions. Both damping constant a and perpendicular magnetic anisotropy energy Ku depend strongly on layer thickness and bilayer periodicity, and rise to approximately 0.08 and 8 Merg/cm3, respectively. The Gilbert damping rate depends linearly on inverse multilayer thickness, indicating that large damping in the Ni/Co multilayers stems from its interfaces in contact with the Pt layers.
| Original language | English |
|---|---|
| Article number | 013005 |
| Journal | Applied Physics Express |
| Volume | 4 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2011 Jan 1 |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Mizukami, S., Zhang, X., Kubota, T., Naganuma, H., Oogane, M., Ando, Y., & Miyazaki, T. (2011). Gilbert damping in Ni/Co multilayer films exhibiting large perpendicular anisotropy. Applied Physics Express, 4(1), [013005]. https://doi.org/10.1143/APEX.4.013005