Open AccessOptimization of out-of-plane magnetized Co/Pt multilayers with resistive buffer layers
Author(s) -
Satoru Emori,
Geoffrey S. D. Beach
Publication year - 2011
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.3622613
Subject(s) - buffer (optical fiber) , materials science , layer (electronics) , metal , optoelectronics , analytical chemistry (journal) , condensed matter physics , nanotechnology , chemistry , metallurgy , electrical engineering , physics , engineering , chromatography
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.National Science Foundation (U.S.) (Graduate Research Fellowship Program
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