论文部分内容阅读
The giant magnetoimpedance(GMI)effect in Fe89Zr7-xHfxB4(x=0.5or 1.0)ribbon annealed at different temperatures was investigated.The results show that some addition of hafnium to Fe-Zr-B raises the GMI effect.There is an optimum annealing temperature about570 ℃for obtaining large GMI behavior in Fe89Zr7-xHfxB4(x=0.5or 1.0)nanocrystalline ribbons.At 900 kHz,the magnetoimpedance for Fe89Zr6Hf1B4 nanocrystalline ribbon monotonically changes with applied DC field,and reaches-33.4 % at 7 162A/m.Meanwhile,the results show that the transverse anisotropy field of Fe89Zr6Hf1B4 ribbons decreases with increasing annealing temperature from 520 ℃ to 620 ℃.
The giant magnetoimpedance (GMI) effect in Fe89Zr7-xHfxB4 (x = 0.5or 1.0) ribbon annealed at different temperatures was investigated. The results show that some addition of hafnium to Fe-Zr-B raises the GMI effect. temperature about 570 ° C for the large GMI behavior in Fe89Zr7-xHfxB4 (x = 0.5or 1.0) nanocrystalline ribbons. At 900 kHz, the magnetoimpedance for Fe89Zr6Hf1B4 nanocrystalline ribbon monotonically changes with applied DC field, and reaches -33.4% at 7162A / m. Meanwhile, the results show that the transverse anisotropy field of Fe89Zr6Hf1B4 ribbons decreases with increasing annealing temperature from 520 ° C to 620 ° C.