Dependence of dielectric parameters and AC conductivity on frequency in polycrystalline NiWO4
The dielectric behaviour of polycrystalline nickel tungstate (NiWO4) sample synthesized by chemical precipitation method is investigated. The dependence of complex permittivity (ε*) and dissipation factor (tanδ) on the frequency are analysed. In order to understand the relaxation process in the samp...
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| creator | Hitha, H. Kuriakose, Soumya John, Mathew Jose, Anjaly Varghese, Thomas |
| description | The dielectric behaviour of polycrystalline nickel tungstate (NiWO4) sample synthesized by chemical precipitation method is investigated. The dependence of complex permittivity (ε*) and dissipation factor (tanδ) on the frequency are analysed. In order to understand the relaxation process in the sample complex impedance spectroscopy along with electric modulus are studied. This study confirms a single relaxation process in NiWO4 which is a non-Debyetype and the contribution of grain towards the conduction. For the clear understanding of the relaxation behaviour and conductivity of the NiWO4 sample, a simulation of complex impedance data is performed with an equivalent electric circuit. The variation of ac conductivity (σac) with frequency at room temperature is also analysed. It is found that conductivity follows Jonscher’s power law. |
| doi_str_mv | 10.1063/5.0016852 |
| format | Conference Proceeding |
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The dependence of complex permittivity (ε*) and dissipation factor (tanδ) on the frequency are analysed. In order to understand the relaxation process in the sample complex impedance spectroscopy along with electric modulus are studied. This study confirms a single relaxation process in NiWO4 which is a non-Debyetype and the contribution of grain towards the conduction. For the clear understanding of the relaxation behaviour and conductivity of the NiWO4 sample, a simulation of complex impedance data is performed with an equivalent electric circuit. The variation of ac conductivity (σac) with frequency at room temperature is also analysed. It is found that conductivity follows Jonscher’s power law.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/5.0016852</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Chemical precipitation ; Chemical synthesis ; Circuits ; Complex permittivity ; Dependence ; Dissipation factor ; Frequency analysis ; Nickel compounds ; Polycrystals ; Room temperature ; Tungstates</subject><ispartof>AIP Conference Proceedings, 2020, Vol.2263 (1)</ispartof><rights>Author(s)</rights><rights>2020 Author(s). 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The dependence of complex permittivity (ε*) and dissipation factor (tanδ) on the frequency are analysed. In order to understand the relaxation process in the sample complex impedance spectroscopy along with electric modulus are studied. This study confirms a single relaxation process in NiWO4 which is a non-Debyetype and the contribution of grain towards the conduction. For the clear understanding of the relaxation behaviour and conductivity of the NiWO4 sample, a simulation of complex impedance data is performed with an equivalent electric circuit. The variation of ac conductivity (σac) with frequency at room temperature is also analysed. It is found that conductivity follows Jonscher’s power law.</description><subject>Chemical precipitation</subject><subject>Chemical synthesis</subject><subject>Circuits</subject><subject>Complex permittivity</subject><subject>Dependence</subject><subject>Dissipation factor</subject><subject>Frequency analysis</subject><subject>Nickel compounds</subject><subject>Polycrystals</subject><subject>Room temperature</subject><subject>Tungstates</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2020</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kE1LAzEURYMoWKsL_0HAnTA138ksS_2EYjeKbiSkmQRSpsmYSQvz7x1pwZ2r9xbn3vc4AFxjNMNI0Ds-QwgLxckJmGDOcSUFFqdgglDNKsLo5zm46PsNQqSWUk3A173rXGxctA4mD5vgWmdLDhZ2JputKy730MQGzhfQptjsbAn7UAaYIvTZfe_G5ABDhF1qB5uHvpi2DdHB1_CxYpfgzJu2d1fHOQXvjw9vi-dquXp6WcyXlSVIlUoRb9dICkKVQzX1hjChJMPj0jCsPLVSUF9T5xiygslarLnhiMo1pqJWiE7BzaG3y2l8qS96k3Y5jic1YQxJpjjDI3V7oHobiikhRd3lsDV50BjpX32a66O-_-B9yn-g7hpPfwAIAm_O</recordid><startdate>20200907</startdate><enddate>20200907</enddate><creator>Hitha, H.</creator><creator>Kuriakose, Soumya</creator><creator>John, Mathew</creator><creator>Jose, Anjaly</creator><creator>Varghese, Thomas</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20200907</creationdate><title>Dependence of dielectric parameters and AC conductivity on frequency in polycrystalline NiWO4</title><author>Hitha, H. ; Kuriakose, Soumya ; John, Mathew ; Jose, Anjaly ; Varghese, Thomas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c208t-82fcb076238e093fa2468741fa2d418f3c763f93ee40c64796b5a5037b1369803</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Chemical precipitation</topic><topic>Chemical synthesis</topic><topic>Circuits</topic><topic>Complex permittivity</topic><topic>Dependence</topic><topic>Dissipation factor</topic><topic>Frequency analysis</topic><topic>Nickel compounds</topic><topic>Polycrystals</topic><topic>Room temperature</topic><topic>Tungstates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hitha, H.</creatorcontrib><creatorcontrib>Kuriakose, Soumya</creatorcontrib><creatorcontrib>John, Mathew</creatorcontrib><creatorcontrib>Jose, Anjaly</creatorcontrib><creatorcontrib>Varghese, Thomas</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hitha, H.</au><au>Kuriakose, Soumya</au><au>John, Mathew</au><au>Jose, Anjaly</au><au>Varghese, Thomas</au><au>Jacob, Julie</au><au>Nair, Saritha K.</au><au>Kurian, Manju</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Dependence of dielectric parameters and AC conductivity on frequency in polycrystalline NiWO4</atitle><btitle>AIP Conference Proceedings</btitle><date>2020-09-07</date><risdate>2020</risdate><volume>2263</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>The dielectric behaviour of polycrystalline nickel tungstate (NiWO4) sample synthesized by chemical precipitation method is investigated. The dependence of complex permittivity (ε*) and dissipation factor (tanδ) on the frequency are analysed. In order to understand the relaxation process in the sample complex impedance spectroscopy along with electric modulus are studied. This study confirms a single relaxation process in NiWO4 which is a non-Debyetype and the contribution of grain towards the conduction. For the clear understanding of the relaxation behaviour and conductivity of the NiWO4 sample, a simulation of complex impedance data is performed with an equivalent electric circuit. The variation of ac conductivity (σac) with frequency at room temperature is also analysed. It is found that conductivity follows Jonscher’s power law.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0016852</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP Conference Proceedings, 2020, Vol.2263 (1) |
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| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0016852 |
| source | AIP Journals Complete |
| subjects | Chemical precipitation Chemical synthesis Circuits Complex permittivity Dependence Dissipation factor Frequency analysis Nickel compounds Polycrystals Room temperature Tungstates |
| title | Dependence of dielectric parameters and AC conductivity on frequency in polycrystalline NiWO4 |
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