Optimization of out-of-plane magnetized Co/Pt multilayers with resistive buffer layers
Author(s)Emori, Satoru; Beach, Geoffrey Stephen
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Ta oxide (TaOx) is investigated as a resistive buffer layer for the growth of high-quality Co/Pt multilayers with perpendicular magnetic anisotropy (PMA). The Pt/(Co/Pt)3 films grown on TaOx buffer layers exhibit stronger PMA than those grown on Pt buffer layers, and are of comparable quality to films grown on metallic Ta. The optimized multilayers with TaOx buffer layers remain out-of-plane magnetized for Co layer thicknesses up to 10 Å without introducing a metallic current-shunting path, making these films attractive for spintronic devices using spin-polarized current.
DepartmentMassachusetts Institute of Technology. Department of Materials Science and Engineering
Journal of Applied Physics
American Institute of Physics
Emori, Satoru, and Geoffrey S. D. Beach. Optimization of Out-of-plane Magnetized Co/Pt Multilayers with Resistive Buffer Layers. Journal of Applied Physics 110, no. 3 (2011): 033919.© 2011 American Institute of Physics.
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