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http://dx.doi.org/10.4283/JKMS.2002.12.2.046

Effect of the Growing Temperature on the Induced Anisotropy of Mumetal Thin Film  

Lee, Young-Woo (충남대학교 재료공학과)
Kim, Cheol-Gi (충남대학교 재료공학과)
Kim, Chong-Oh (충남대학교 재료공학과)
Abstract
Soft magnetic Mumetal thin film was fabricated under magnetic field at various substrate temperatures. High vacuum annealing was carried out at 200$\^{C}$ during 1 hr. The in-plane anisotropy of Mumetal thin film was determined from hysteresis loops measured by VSM when the sample axis varied from the field direction from 0°to 180°. As the substrate temperature increases, the coercivity in easy direction decreases, but uniaxial anisotropy deviates from the field direction. After vacuum annealing at 200$\^{C}$ for 1 hr, the uniaxial anisotropy is improved irrespective of substrate temperature. When the substrate temperature was 50$\^{C}$, the anisotropy field is 4.3 Oe. As the substrate temperature increases anisotropy field decreases. Uniaxial anisotropy of Mumetal thin film was formed best at 50$\^{C}$ before and after annealing.
Keywords
Mumetal; mumetal; induced anisotropy; substrate temperature; annealing;
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