FERROMAGNETIC RESONANCE STUDIES OF Co/CoFe_2O_4 MULTILAYERS

Abstract

Abstract: The Co/CoFe2O4 multilayers have been grown on the glass substrate using sputtering techniques. In these films the Co layers were measured to have the fcc structure with [11] axis perpendicular to the film plane, and the CoFe2O4 layers are amorphous. Ferromagnetic resonance measurements have been made as a function of the external magnetic field orientation in a plane perpendicular to the film. The effective magnetization, effective anisotropy constant and interface anisotropy constant have been determined. The influence of Co layers thickness on magnetic properties was discussed.

Key words: Co/CoFe_2O_4 multilayer, ferromagnetic resonance, magnetic property

B.X. Gu(Department of Physics, Nanjing University, Nanjing 210093, China)H. Wang(Department of Physics, Southeastern University, Nanjing 210008, China)Manuscript receivedin revised form 12 October 1998). FERROMAGNETIC RESONANCE STUDIES OF Co/CoFe_2O_4 MULTILAYERS[J]. Acta Metallurgica Sinica (English Letters), 1999, 12(2): 181-184.

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FERROMAGNETIC RESONANCE STUDIES OF Co/CoFe_2O_4 MULTILAYERS

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