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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| Format: | Article |
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Universiti Kebangsaan Malaysia
1997
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| Online Access: | http://journalarticle.ukm.my/3757/ |
| _version_ | 1848810293217460224 |
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| author | Ahmad Nazlim Yusoff , Mustaffa Hj. Abdullah, |
| author_facet | Ahmad Nazlim Yusoff , Mustaffa Hj. Abdullah, |
| author_sort | Ahmad Nazlim Yusoff , |
| 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. |
| first_indexed | 2025-11-14T23:28:12Z |
| format | Article |
| id | oai:generic.eprints.org:3757 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T23:28:12Z |
| publishDate | 1997 |
| publisher | Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org: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 |
| 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 |
| title | 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_short | 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 |
| url | http://journalarticle.ukm.my/3757/ http://journalarticle.ukm.my/3757/ |