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No.3(pp.69-95)

Home > Issues > Volume 9 (2004) > No.3(pp.69-95)

Magnetic Properties of Fe-Ni-N/Cu Multilayered Films by DC Magnetron Sputtering Method

Journal of Magnetics, Volume 9, Number 3, 30 Sep 2004, Pages 79-82

Jung Gi Kim(Department of Physics, Hanyang University), Hyun Joong Kim(Department of Physics, Hanyang University), Ji Young Jang(Department of Physics, Hanyang University), Kyung Hunn Han*

(Quantum Photonic Science Research Center, Hanyang University)

Abstract

The structure and magnetic properties of Fe-Ni-N/Cu multilayered films, prepared by the DC magnetron sputter, as a function of different thicknesses of Fe-Ni-N (t_FeNiN) and Cu (t_Cu) layers have been studied by the methods of x-ray diffraction and measurement of magnetic moment. It has been found that the enhancement of (200) orientation in Fe-Ni-N layers is observed at the ratio of layer thickness with about t_FeNiN/t_Cu≈=3.75. The reduction of magnetization due to the formation of interdiffusion near the interface is explained by means of the dead layer model. The temperature dependence of magnetization exhibits the feature of Blochs T^3/2law. The layer thickness dependence of Curie temperature has been discussed by critical temperature theory of Heisenberg model.

Keywords: multilayered film; Fe_3NiN film; Curie temperature; Magnetization; Spin wave theory

DOI:

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