Tunnel magneto-impedance effect of the ZnNi-ferrite encapsulated NiFe microspheres

C. M. Fu*, C. Y. Hsu, Y. C. Chao, D. S. Kim, N. Matsushita, M. Abe

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

4 引文 斯高帕斯(Scopus)

摘要

We report the first observation of spin tunneling effect on the ZnNi-ferrite encapsulated Ni-Fe microspheres, which is measured by the impedance spectra using a network analyzer. The field dependence of impedance of the composites has shown a typical behavior of magneto-tunneling effect, with a maximum magneto-impedance ratio of about 2.35%, at a frequency of 100 kHz and at the room temperature. The temperature dependence of the magnetoimpedance and dielectric modulus has been investigated to explore the origin for tunneling mechanism. Implications for magnetic sensing are discussed.

原文英語
頁(從 - 到)e1839-e1841
期刊Journal of Magnetism and Magnetic Materials
272-276
發行號SUPPL. 1
DOIs
出版狀態已發佈 - 2004 五月 1

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學

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