The Electric and Dielectric Properties of the ZnNi-Ferrite Plated Nife Microspheres Synthesized from Aqueous Solution

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

doi:10.1109/TMAG.2003.816030

The Electric and Dielectric Properties of the ZnNi-Ferrite Plated Nife Microspheres Synthesized from Aqueous Solution

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 have performed systematical study of the impedance spectra and dielectric modulus on the Ni-Fe microspheres encapsulated with the ZnNi-ferrite by ultrasonic assisted ferrite plating process. The equivalent electric circuit composed of resistance and capacitance has been utilized in analog of the electrical and dielectric properties of the microspheric composites. The result of analysis implies that the resistive ferrite layer and ZnNi-ferrite/NiFe-spheres interface inhibit the eddy currents path and, thus causing enhancement of the dynamic magnetization. Both temperature and field variation of impedance provide evidence of the tunneling conduction in the microspheric composites, signifying existing of Ferromagnet/Insulator/ Ferromagnet (F/I/F) structure.

原文	英語
頁（從 - 到）	3136-3138
頁數	3
期刊	IEEE Transactions on Magnetics
卷	39
發行號	5 II
DOIs	https://doi.org/10.1109/TMAG.2003.816030
出版狀態	已發佈 - 2003 9月
對外發佈	是

ASJC Scopus subject areas

電子、光磁材料
電氣與電子工程

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10.1109/TMAG.2003.816030

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title = "The Electric and Dielectric Properties of the ZnNi-Ferrite Plated Nife Microspheres Synthesized from Aqueous Solution",

abstract = "We have performed systematical study of the impedance spectra and dielectric modulus on the Ni-Fe microspheres encapsulated with the ZnNi-ferrite by ultrasonic assisted ferrite plating process. The equivalent electric circuit composed of resistance and capacitance has been utilized in analog of the electrical and dielectric properties of the microspheric composites. The result of analysis implies that the resistive ferrite layer and ZnNi-ferrite/NiFe-spheres interface inhibit the eddy currents path and, thus causing enhancement of the dynamic magnetization. Both temperature and field variation of impedance provide evidence of the tunneling conduction in the microspheric composites, signifying existing of Ferromagnet/Insulator/ Ferromagnet (F/I/F) structure.",

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note = "Funding Information: Manuscript received January 6, 2003. This work was supported in part by the Taiwan National Science Foundation under Grant NSC-91-2112-M-017-004. C. M. Fu, C. Y. Hsu, and Y. C. Chao are with the Physics Department, National Kaoshiung Normal University, Kaoshiung 802, Taiwan (e-mail: chaomingfu@ yahoo.com.tw). D. S. Kim, N. Matsushita, and M. Abe are with the Department of Physical Electronics, Tokyo Institute of Technology, Tokyo 152-8550, Japan. Digital Object Identifier 10.1109/TMAG.2003.816030",

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AU - Fu, C. M.

AU - Hsu, C. Y.

AU - Chao, Y. C.

AU - Kim, D. S.

AU - Matsushita, N.

AU - Abe, M.

N1 - Funding Information: Manuscript received January 6, 2003. This work was supported in part by the Taiwan National Science Foundation under Grant NSC-91-2112-M-017-004. C. M. Fu, C. Y. Hsu, and Y. C. Chao are with the Physics Department, National Kaoshiung Normal University, Kaoshiung 802, Taiwan (e-mail: chaomingfu@ yahoo.com.tw). D. S. Kim, N. Matsushita, and M. Abe are with the Department of Physical Electronics, Tokyo Institute of Technology, Tokyo 152-8550, Japan. Digital Object Identifier 10.1109/TMAG.2003.816030

PY - 2003/9

Y1 - 2003/9

N2 - We have performed systematical study of the impedance spectra and dielectric modulus on the Ni-Fe microspheres encapsulated with the ZnNi-ferrite by ultrasonic assisted ferrite plating process. The equivalent electric circuit composed of resistance and capacitance has been utilized in analog of the electrical and dielectric properties of the microspheric composites. The result of analysis implies that the resistive ferrite layer and ZnNi-ferrite/NiFe-spheres interface inhibit the eddy currents path and, thus causing enhancement of the dynamic magnetization. Both temperature and field variation of impedance provide evidence of the tunneling conduction in the microspheric composites, signifying existing of Ferromagnet/Insulator/ Ferromagnet (F/I/F) structure.

AB - We have performed systematical study of the impedance spectra and dielectric modulus on the Ni-Fe microspheres encapsulated with the ZnNi-ferrite by ultrasonic assisted ferrite plating process. The equivalent electric circuit composed of resistance and capacitance has been utilized in analog of the electrical and dielectric properties of the microspheric composites. The result of analysis implies that the resistive ferrite layer and ZnNi-ferrite/NiFe-spheres interface inhibit the eddy currents path and, thus causing enhancement of the dynamic magnetization. Both temperature and field variation of impedance provide evidence of the tunneling conduction in the microspheric composites, signifying existing of Ferromagnet/Insulator/ Ferromagnet (F/I/F) structure.

KW - Impedence

KW - Microsphere

KW - ZnNi-ferrite

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VL - 39

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 II

ER -

The Electric and Dielectric Properties of the ZnNi-Ferrite Plated Nife Microspheres Synthesized from Aqueous Solution

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