THEORETICAL STUDY OF GIANT MAGNETO-IMPEDANCE IN AMORPHOUS FILMS WITH LONGITUDINAL MAGNETIC ANISOTROPY

Acta Metallurgica Sinica (English Letters) ›› 2000, Vol. 13 ›› Issue (4): 995-1000.

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THEORETICAL STUDY OF GIANT MAGNETO-IMPEDANCE IN AMORPHOUS FILMS WITH LONGITUDINAL MAGNETIC ANISOTROPY

J.Q. Yu; Y. Zhou; B.C. Cai and X.L. Zhao Information Storage Research Center, Research Lab of Thin Films and Microfabrication Technology, Shanghai Jiao Tong University, Shanghai 200030, China

Received:2000-08-25 Revised:2000-08-25 Online:2000-10-10 Published:2009-10-10

Abstract

Abstract: Giant magneto-impedance effect (MI) in thin films with longitudinal magnetic anisotropy is studied theoretically. The effective permeability of films as a function of external magnetic field Ha, anisotropy field and other parameters of films is presented using Landau - Lifshitz- Gilbert theory. The theoretical results agree well with experimental ones, which show a strong dependence of the impedance on the applied magnetic field.

Key words: magneto-impedance effect, effective permeability, skin effect, amorphous film

J.Q. Yu; Y. Zhou; B.C. Cai and X.L. Zhao Information Storage Research Center, Research Lab of Thin Films and Microfabrication Technology, Shanghai Jiao Tong University, Shanghai 200030, China. THEORETICAL STUDY OF GIANT MAGNETO-IMPEDANCE IN AMORPHOUS FILMS WITH LONGITUDINAL MAGNETIC ANISOTROPY[J]. Acta Metallurgica Sinica (English Letters), 2000, 13(4): 995-1000.

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THEORETICAL STUDY OF GIANT MAGNETO-IMPEDANCE IN AMORPHOUS FILMS WITH LONGITUDINAL MAGNETIC ANISOTROPY

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