期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep25391
关键词
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资金
- KIST Institutional Program [2E26380]
- Pioneer Research Center Program [2011-0027905]
- NRF - Korean Government (MSIP) [2010-0004614, 2013R1A1A2011326, 2014K2A1A2048433, 2013R1A2000245]
- U.S. Department of Energy, Office of Science [DEAC02-06CH11357]
- NRF - Korean Government (MOE) [2010-0004614, 2013R1A1A2011326, 2014K2A1A2048433, 2013R1A2000245]
- National Research Foundation of Korea [2010-0004614, 2013R1A1A2011326] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In spintronic devices consisting of ferromagnetic/nonmagnetic systems, the ferromagnet-induced magnetic moment in the adjacent nonmagnetic material significantly influences the spin transport properties. In this study, such magnetic proximity effect in a Pd/Co/Pd trilayer system is investigated by x-ray magnetic circular dichroism and x-ray resonant magnetic reflectivity, which enables magnetic characterizations with element and depth resolution. We observe that the total Pd magnetic moments induced at the top Co/Pd interface are significantly larger than the Pd moments at the bottom Pd/Co interface, whereas transmission electron microscopy and reflectivity analysis indicate the two interfaces are nearly identical structurally. Such asymmetry in magnetic proximity effects could be important for understanding spin transport characteristics in ferromagnetic/nonmagnetic systems and its potential application to spin devices.
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