Magnetic polarization in Py/Pt spin pumping heterostructures
收藏ESRF Portal2028-01-01 更新2026-04-23 收录
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https://doi.esrf.fr/10.15151/ESRF-ES-2049623240
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资源简介：
It is the aim of the proposal to investigate the presence and strength of an induced magnetic polarization in Py/Pt spin pumping heterostructures (Py=permalloy, Ni80Fe20) at the Pt L-edges. We have experimental evidence from broadband (2 – 40 GHz) ferromagnetic resonance (FMR) experiments that the increase of the FMR linewidth broadening in Py/Pt spin pumping heterostructures can be gradually suppressed by inserting thin Al spacer layers. However, as pointed out before chemical intermixing going hand-in-hand with an induced magnetic polarization of the Pt is a common concern for these types of functional interfaces. Thus, the investigation of an induced polarization of the Pt by means of L-edge XMCD is the method of choice [1]. It is known that Pt in direct contact with Fe exhibits a clear induced polarization [1]. A decrease of the XMCD signal with increasing Al spacer thickness can allow to correlate induced polarization with increased spin pumping efficiency.
提供机构：
Johannes Kepler University, Abteilung fuer Festkoerperphysik, Altenberger Str. 69, 4040 Linz, Austria
创建时间：
2028-01-01
