Exploration of precessional spin dynamics in magnetic multilayers
作者： S. Buschhorn , F. Brüssing , M. Ewerlin , R. Salikhov , R. Abrudan
DOI: 10.1063/1.4766453
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摘要: In this article, we present magnetization dynamics studies on magnetic multilayers using time resolved resonant x-ray scattering, which accesses both the frequency and damping of free precession. Here, compare two with ferromagnetic Py (Py=Ni0.8Fe0.2) layers separated by conducting Cu non-conducting AlOx layers. Magnetic Bragg peaks from multilayer are excited tuning circular polarized energy to L2,3 absorption edges Fe Ni in Py. The coherent precessional follows then an analysis dependent peak intensity after field pulse excitation. We find precession all within also same frequency, independent interlayer material. At time, is considerably different for as materials. Reasons enhanced Py/Cu discussed. Additional dept...
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