| The structure, saturation magnetization and magnetic anisotropy of Co_(82)Cr_(18) thin film have been investigated. The films were prepared by rf-sputtering technique. The films consist of columnar grains, whose crystal structure is hcp. C-axis of the grains is aligned roughly parallel to the normal of film surface. Angular distribution of the c-axis is less than 6˚ with respect to the normal of the film surface. The saturation magnetization of film is 380 emu/㎤ at room temperature, and it increases about 20 emu/㎤ after heat treating at 400℃ for 1 hour. The easy axis of magnetization of the film is the normal direction of the film. The coefficients of magnetic of the film is the normal direction of the film. The coefficients of magnetic anisotrouty, K_(2θ) and K_(4θ) were 4.9×10＾5 erg/㎤ and -5×10⁴erg/㎤, respectively. The magnitudes of the coefficient increase about 1.7 times by heat treatment at 400℃ for 1 hour. |
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