Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Magnetostrictive and Magnetic Properties of Amorphous ${Tb_{45.7}}{Fe_{54.3-x}}{Co_x}$ 및 ${Tb_{50.2}}{Fe_{49.8-x}}{Co_x}$ (0$\leqq$x$\leqq$9.6) Alloy Thin Films

비정질 ${Tb_{45.7}}{Fe_{54.3-x}}{Co_x}$ 및 ${Tb_{50.2}}{Fe_{49.8-x}}{Co_x}$ (0$\leqq$x$\leqq$9.6) 합금박막의 자기변형 및 자기적 특성

  • Choi, Y.S. (Power Distribution Technology Center, Korea Electric Power Research Institute) ;
  • Cho, S.S. (Power Distribution Technology Center, Korea Electric Power Research Institute) ;
  • Yoon, G.G. (Power Distribution Technology Center, Korea Electric Power Research Institute) ;
  • Lee, W.S. (Power Distribution Technology Center, Korea Electric Power Research Institute) ;
  • Li, Ying (Research Center for Advanced Magnetic Materials, Chungnam National University) ;
  • Kim, C.O. (Research Center for Advanced Magnetic Materials, Chungnam National University)
  • 최용석 (배전기술센터, 한전 전력연구원) ;
  • 조성수 (배전기술센터, 한전 전력연구원) ;
  • 윤기갑 (배전기술센터, 한전 전력연구원) ;
  • 이완수 (배전기술센터, 한전 전력연구원) ;
  • 이영 (충남대학교 고기능성자성재료연구센터) ;
  • 김종오 (충남대학교 고기능성자성재료연구센터)
  • Published : 2001.08.01
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Abstract

The magnetic and magnetostrictive properties of amorphous Tb/sub 45.7/Fe/sub 54.3-x/Co/sub x/ and Tb/sub 50.2/Fe/sub 49.8-x/Co/sub x/ (0≤x≤9.6) thin films have systematically been investigated. The films were fabricated by rf magnetron sputtering using a composite target which consists of a Fe plate and Tb, Co chips. The microstructure mainly consists of an amorphous phase. Excellent intrinsic and low magnetic-field-magnetostrictive properties were achieved in Tb/sub 45.7/Fe/sub 54.3-x/Co/sub x/ and Tb/sub 50.2/Fe/sub 49.8-x/Co/sub x/ (0≤x≤9.6). The magnetostriction of 130 ppm was obtained with low field of 100 Oe. The intrinsic magnetostriction(applied field, 5 kOe) were increased from 330ppm to 400ppm.

비정질 $Tb_{45.7}$ $Fe_{54.3-x}$ /$Co_{x}$ 및 $Tb_{50.2}$ /$_{Fe}$ 49.8-x/$Co_{x}$ (0$\leq$$x\leq$9.6) 합금박막의 자기적 특성 및 자기변형특성에 대하여 체계적으로 조사하였다. 박막제조는 Fe 타게트에 Tb, Co 소편으로 구성된 복합타겟 방식의 rf 마그네트론 스퍼터링법에 의해 제조하였다. XRD 조사에의 한 박막의 미세구조는 잘 발달된 비정질 구조를 나타내었다. $Tb_{45.7}$ $Fe_{54.3-x}$ $Co_{x}$ (x=2~4)에서 우수한 고유자기변형특성 및 저자기장자기변형특성을 얻었다. 즉, 100 Oe의 저자장에서 130ppm의 자기변형을 나타내었으며 고유자기변형 (인가 자기장, 5 kOe)은 330ppm에서 400ppm으로 증가하였다.

Keywords

References

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