Giant Magnetoimpedance in Fe89B4Hf7 Nanocrystalline Ribbons
In this work the giant magnetoimpedance effect has been found in Fe89B4Hf7 nanocrystalline ribbons. There is an optimal annealing temperature about 650°C for obtaining a large magnetoimpedance. The magnetoimpedance can reach 208% for Fe89B4Hf7 annealed at 650°C for 20min. meanwhile, it has been found that the magnetoimpedance in FeHfB shows a good thermal- heating stability, which is useful for application.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
X. Yu et al., "Giant Magnetoimpedance in Fe89B4Hf7 Nanocrystalline Ribbons", Materials Science Forum, Vols. 475-479, pp. 2203-2206, 2005