The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite

The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite

The a.c. electrical response of a polycrystalline Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite is studied by means of impedance spectroscopy. The impedance measurement was performed at different input voltage amplitudes in ten decades of frequency (1 mHz - 10 MHz). Two overlapping semicircles with negative capa...

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Main Authors: Ahmad Nazlim Yusoff, Mustaffa Hj. Abdullah
Format: Article
Published: Universiti Kebangsaan Malaysia 1997
Online Access:http://journalarticle.ukm.my/3757/
http://journalarticle.ukm.my/3757/
id ukm-3757
recordtype eprints
spelling ukm-37572012-03-19T03:16:23Z http://journalarticle.ukm.my/3757/ The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite Ahmad Nazlim Yusoff , Mustaffa Hj. Abdullah, The a.c. electrical response of a polycrystalline Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite is studied by means of impedance spectroscopy. The impedance measurement was performed at different input voltage amplitudes in ten decades of frequency (1 mHz - 10 MHz). Two overlapping semicircles with negative capacitance phenomenon below 1 Hz are observed at all amplitudes. The two semicircles are mainly attributed to the grain and grain boundary processes at high and low frequencies respectively. The grain boundary impedance shows a non-linear dependence on the input voltage, where the corresponding impedance semicircle is smaller for larger amplitude. However, a linear response is observed for the grain component. The dependence of the a.c. electrical properties of the grain and grain boundary components on the amplitude of the input voltage is discussed. Universiti Kebangsaan Malaysia 1997-09 Article PeerReviewed Ahmad Nazlim Yusoff , and Mustaffa Hj. Abdullah, (1997) The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite. Sains Malaysiana, 26 (3&4). pp. 87-98. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol26num3and4_1997/vol26num3and4_97page87-98.html
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institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
description The a.c. electrical response of a polycrystalline Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite is studied by means of impedance spectroscopy. The impedance measurement was performed at different input voltage amplitudes in ten decades of frequency (1 mHz - 10 MHz). Two overlapping semicircles with negative capacitance phenomenon below 1 Hz are observed at all amplitudes. The two semicircles are mainly attributed to the grain and grain boundary processes at high and low frequencies respectively. The grain boundary impedance shows a non-linear dependence on the input voltage, where the corresponding impedance semicircle is smaller for larger amplitude. However, a linear response is observed for the grain component. The dependence of the a.c. electrical properties of the grain and grain boundary components on the amplitude of the input voltage is discussed.
format Article
author Ahmad Nazlim Yusoff ,
Mustaffa Hj. Abdullah,
spellingShingle Ahmad Nazlim Yusoff ,
Mustaffa Hj. Abdullah,
The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite
author_facet Ahmad Nazlim Yusoff ,
Mustaffa Hj. Abdullah,
author_sort Ahmad Nazlim Yusoff ,
title The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite
title_short The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite
title_full The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite
title_fullStr The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite
title_full_unstemmed The A.C. electrical response from the grain and grain boundary components of a Li0.25Ni0.2Zn0.3Fe2.25O4 ferrite
title_sort a.c. electrical response from the grain and grain boundary components of a li0.25ni0.2zn0.3fe2.25o4 ferrite
publisher Universiti Kebangsaan Malaysia
publishDate 1997
url http://journalarticle.ukm.my/3757/
http://journalarticle.ukm.my/3757/
first_indexed 2023-09-18T19:39:40Z
last_indexed 2023-09-18T19:39:40Z
_version_ 1777405505691451392

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