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Dielectric relaxation in CoFe sub(2-x)Y sub(x)O sub(4) (x=0.2, 0.4, 0.6) prepared by hydrothermal method
Yttrium substituted cobalt ferrite (CoFe sub(2-x)Y sub(x)O sub(4)) powders (x=0.2, 0.4 and 0.6) have been synthesized by hydrothermal method. X-ray diffraction has revealed the single phase formation of the compound with impurity phase formation at higher yttrium doping. Dielectric relaxations were...
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Published in: | Journal of materials science. Materials in electronics 2017-05, Vol.28 (9), p.6583-6591 |
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container_title | Journal of materials science. Materials in electronics |
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creator | Saikia, Kallol Kumar Haque, Saif Ul Murugesan, G Kalainathan, S |
description | Yttrium substituted cobalt ferrite (CoFe sub(2-x)Y sub(x)O sub(4)) powders (x=0.2, 0.4 and 0.6) have been synthesized by hydrothermal method. X-ray diffraction has revealed the single phase formation of the compound with impurity phase formation at higher yttrium doping. Dielectric relaxations were observed due to the presence of oxygen vacancies and Maxwell-Wagner effect. The activation energies calculated from the impedance spectra confirmed that oxygen vacancies were the causes for dielectric relaxation. Doping of yttrium has suppressed the magnetic saturation due to the decrease of Fe super(3+)-Fe super(3+) interactions. |
doi_str_mv | 10.1007/s10854-017-6348-1 |
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X-ray diffraction has revealed the single phase formation of the compound with impurity phase formation at higher yttrium doping. Dielectric relaxations were observed due to the presence of oxygen vacancies and Maxwell-Wagner effect. The activation energies calculated from the impedance spectra confirmed that oxygen vacancies were the causes for dielectric relaxation. Doping of yttrium has suppressed the magnetic saturation due to the decrease of Fe super(3+)-Fe super(3+) interactions.</description><identifier>ISSN: 0957-4522</identifier><identifier>EISSN: 1573-482X</identifier><identifier>DOI: 10.1007/s10854-017-6348-1</identifier><language>eng</language><subject>Dielectric relaxation ; Doping ; Electronics ; Formations ; Materials science ; Oxygen ; Vacancies ; Yttrium</subject><ispartof>Journal of materials science. 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X-ray diffraction has revealed the single phase formation of the compound with impurity phase formation at higher yttrium doping. Dielectric relaxations were observed due to the presence of oxygen vacancies and Maxwell-Wagner effect. The activation energies calculated from the impedance spectra confirmed that oxygen vacancies were the causes for dielectric relaxation. Doping of yttrium has suppressed the magnetic saturation due to the decrease of Fe super(3+)-Fe super(3+) interactions.</description><subject>Dielectric relaxation</subject><subject>Doping</subject><subject>Electronics</subject><subject>Formations</subject><subject>Materials science</subject><subject>Oxygen</subject><subject>Vacancies</subject><subject>Yttrium</subject><issn>0957-4522</issn><issn>1573-482X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqVijtOxDAUAC0EEuFzALpXJhIOz46deAuqhRUdDQVUK2_yUIycONiJlL09YsUFaGamGMbuBJYCsXlIAo1WHEXD60oZLs5YJnRTcWXk-znLcKMbrrSUl-wqpS9ErFVlMtY_OfLUztG1EMnb1c4ujOBG2IYdQVoOueRr8XGqtXg9WRWQr49YynvAUv2iLmCKNNlIHRyO0B-7GOae4mA9DDT3obthF5_WJ7r98zXLd89v2xc-xfC9UJr3g0steW9HCkvaiw0qqYRBXf1j_QEsdU3C</recordid><startdate>20170501</startdate><enddate>20170501</enddate><creator>Saikia, Kallol Kumar</creator><creator>Haque, Saif Ul</creator><creator>Murugesan, G</creator><creator>Kalainathan, S</creator><scope>7SP</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20170501</creationdate><title>Dielectric relaxation in CoFe sub(2-x)Y sub(x)O sub(4) (x=0.2, 0.4, 0.6) prepared by hydrothermal method</title><author>Saikia, Kallol Kumar ; Haque, Saif Ul ; Murugesan, G ; Kalainathan, S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_19042418053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Dielectric relaxation</topic><topic>Doping</topic><topic>Electronics</topic><topic>Formations</topic><topic>Materials science</topic><topic>Oxygen</topic><topic>Vacancies</topic><topic>Yttrium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saikia, Kallol Kumar</creatorcontrib><creatorcontrib>Haque, Saif Ul</creatorcontrib><creatorcontrib>Murugesan, G</creatorcontrib><creatorcontrib>Kalainathan, S</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials science. Materials in electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saikia, Kallol Kumar</au><au>Haque, Saif Ul</au><au>Murugesan, G</au><au>Kalainathan, S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dielectric relaxation in CoFe sub(2-x)Y sub(x)O sub(4) (x=0.2, 0.4, 0.6) prepared by hydrothermal method</atitle><jtitle>Journal of materials science. Materials in electronics</jtitle><date>2017-05-01</date><risdate>2017</risdate><volume>28</volume><issue>9</issue><spage>6583</spage><epage>6591</epage><pages>6583-6591</pages><issn>0957-4522</issn><eissn>1573-482X</eissn><abstract>Yttrium substituted cobalt ferrite (CoFe sub(2-x)Y sub(x)O sub(4)) powders (x=0.2, 0.4 and 0.6) have been synthesized by hydrothermal method. X-ray diffraction has revealed the single phase formation of the compound with impurity phase formation at higher yttrium doping. Dielectric relaxations were observed due to the presence of oxygen vacancies and Maxwell-Wagner effect. The activation energies calculated from the impedance spectra confirmed that oxygen vacancies were the causes for dielectric relaxation. Doping of yttrium has suppressed the magnetic saturation due to the decrease of Fe super(3+)-Fe super(3+) interactions.</abstract><doi>10.1007/s10854-017-6348-1</doi></addata></record> |
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subjects | Dielectric relaxation Doping Electronics Formations Materials science Oxygen Vacancies Yttrium |
title | Dielectric relaxation in CoFe sub(2-x)Y sub(x)O sub(4) (x=0.2, 0.4, 0.6) prepared by hydrothermal method |
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