Journal of East China Normal University(Natural Sc ›› 2005, Vol. 2005 ›› Issue (5/6): 152-156.

• Article • Previous Articles     Next Articles

Giant Magneto-impedance Effects in Nanocrystalline Composite Glass-coated Microwires(Chinese)

WANG Rui-li,ZHAO Zhen-jie,YUAN Wang-Zhi,RUAN Jian-zhong,LIU Long-ping,YANG Xie-long   

  1. Center of Functional Nanomaterials and Devices, Department of Physics, East China Normal University, Shanghai200062,China
  • Received:2004-01-08 Revised:2004-03-16 Online:2005-12-31 Published:2005-12-31


Composite structured samples of glass-coated Fe-based nanocrystalline wires deposited with a layer of copper by magnetron sputtering method were prepared. The giant magneto-impedance effect (GMI) observed from the samples was carried out as ac driving current flowed through ferromagnetic core, copper shell, and both of the core and shell, respectively. It is found that the maximum GMI frequency decreases from 80 MHz to 60 MHz with copper layer when the current flows through ferromagnetic core. The onset GMI freqwency is also decreased. The results show the electromagnetic interaction between the shell layer and the core.

Key words: onset frequency, nanocrystalline, glass-coated, giant magneto-impedance effect, onset frequency, nanocrystalline, glass-coated

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