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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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.

Original language	English
Pages (from-to)	3136-3138
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	39
Issue number	5 II
DOIs	https://doi.org/10.1109/TMAG.2003.816030
Publication status	Published - 2003 Sept
Externally published	Yes

Keywords

Impedence
Microsphere
ZnNi-ferrite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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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.",

keywords = "Impedence, Microsphere, ZnNi-ferrite",

author = "Fu, {C. M.} and Hsu, {C. Y.} and Chao, {Y. C.} and Kim, {D. S.} and N. Matsushita and M. Abe",

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",

year = "2003",

month = sep,

doi = "10.1109/TMAG.2003.816030",

language = "English",

volume = "39",

pages = "3136--3138",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5 II",

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TY - JOUR

T1 - The Electric and Dielectric Properties of the ZnNi-Ferrite Plated Nife Microspheres Synthesized from Aqueous Solution

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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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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

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Keywords

ASJC Scopus subject areas

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