Asymmetric magnetic proximity effect in a Pd/Co/Pd trilayer system
- Soongsil Univ., Seoul (Republic of Korea); Korea Institute of Science and Technology, Seoul (Republic of Korea)
- Korea Institute of Science and Technology, Seoul (Republic of Korea); Sookmyung Women's Univ., Seoul (Republic of Korea)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Korea Institute of Science and Technology, Seoul (Republic of Korea)
- Sookmyung Women's Univ., Seoul (Republic of Korea)
- Soongsil Univ., Seoul (Republic of Korea); Argonne National Lab. (ANL), Argonne, IL (United States)
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. Furthermore, 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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- Korea Institute of Science and Technology (KIST); National Research Foundation (NRF) of Korea; Scientific User Facilities Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1275835
- Journal Information:
- Scientific Reports, Journal Name: Scientific Reports Vol. 6; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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