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Author Fu, Yu ♦ Li, Jing ♦ Barsukov, I. ♦ Krivorotov, I. N. ♦ Gonçalves, A. M. ♦ Kuo, C. C. ♦ Farle, M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ANISOTROPY ♦ CARBON DIOXIDE ♦ FERROMAGNETIC RESONANCE ♦ INTERFACES ♦ MAGNESIUM OXIDES ♦ SPIN ♦ TEMPERATURE DEPENDENCE ♦ TEMPERATURE RANGE ♦ THICKNESS ♦ THIN FILMS
Abstract We study perpendicular magnetic anisotropy in thin films of Ta/Co{sub 20}Fe{sub 60}B{sub 20}/MgO by ferromagnetic resonance and find a linear temperature dependence for the first and second order uniaxial terms from 5 to 300 K. Our data suggest the possible hybridization of Fe-O orbitals at the CoFeB/MgO interface for the origin of the first order anisotropy. However, we also find that non-interfacial contributions to the anisotropy are present. An easy-cone anisotropy is found for the entire temperature range in the narrow region of film thicknesses around the spin reorientation transition 1.2–1.35 nm.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-04
Publisher Place United States
Journal Applied Physics Letters
Volume Number 108
Issue Number 14


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