Magnetic Properties of FeCoSiB Amorphous Films Annealed in Magnetic field

자계중 열처리된 FeCoSiB 아몰퍼스박막의 자기적 특성

  • 신광호 (경성대학교 멀티미디어공학과) ;
  • 김영학 (부경대학교 전기공학과) ;
  • 사공건 (동아대학교 전기공학과)
  • Published : 2003.12.01


To utilize FeCoSiB amorphous films for magnetoelastic sensors, the temperature dependency of magnetization (M-T curve) and the magnetization properties of the amorphous films were investigated in this study. As the amount of cobalt In the films increased, the Curie temperature decreased but the crystallization temperature increased. In addition to this, the crystallization temperature was lower than the Curie temperature in the film containing 20 at% cobalt. The optimized annealing condition was set up by analyzing the H-T curve. And then, the amorphous film that has excellent magnetic properties and uni-axal anisotropy could be prepared for construction of the magnetoelastic sensor devices. The coercive force of the film was below 0.5 Oe and the anisotripic field was about 5 Oe.


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