T. Ahmad, M. Islam, I. Gul, Mutawara Mahmood Baig, M. Ajmal
{"title":"Exploring Study of Magnetic and Electrical Properties of Tl3+ Doped Co0.5Ni0.5Fe2O4 Spinel Ferrites","authors":"T. Ahmad, M. Islam, I. Gul, Mutawara Mahmood Baig, M. Ajmal","doi":"10.52131/jmps.2023.0401.0033","DOIUrl":null,"url":null,"abstract":"Co0.5Ni0.5Fe2-xTlxO4 (x=0, 0.05, 0.1, 0.15, and 0.2) spinel ferrites were prepared via the sol-gel technique. The XRD analysis revealed a single-phase spinel structure. The lattice constant ‘a’ increased from 8.223-8.269Å with doping of Tl+3 due to larger ionic radii of Tl+3 than Fe+3 ions. The mass susceptibility at 300K decreased from 7.46 x 10-3-4.15 x 10-3 cm3/g due tothe weakening of AB interactions followed by a decrease in Curie temperature from 453K to 408K. The electrical permittivity follows the Maxwell-Wagner model and Koop’s theory. The dc resistivity of ferrites at 300K increased from 1.82x109-9.23x109 ?-cm with increasing Tl+3 contents due to increased hopping lengths. The activation energy obtained from Arrhenius plots increased from 0.126 to 0.131eV, increasing Tl+3contents","PeriodicalId":293021,"journal":{"name":"Journal of Materials and Physical Sciences","volume":"46 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials and Physical Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.52131/jmps.2023.0401.0033","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Co0.5Ni0.5Fe2-xTlxO4 (x=0, 0.05, 0.1, 0.15, and 0.2) spinel ferrites were prepared via the sol-gel technique. The XRD analysis revealed a single-phase spinel structure. The lattice constant ‘a’ increased from 8.223-8.269Å with doping of Tl+3 due to larger ionic radii of Tl+3 than Fe+3 ions. The mass susceptibility at 300K decreased from 7.46 x 10-3-4.15 x 10-3 cm3/g due tothe weakening of AB interactions followed by a decrease in Curie temperature from 453K to 408K. The electrical permittivity follows the Maxwell-Wagner model and Koop’s theory. The dc resistivity of ferrites at 300K increased from 1.82x109-9.23x109 ?-cm with increasing Tl+3 contents due to increased hopping lengths. The activation energy obtained from Arrhenius plots increased from 0.126 to 0.131eV, increasing Tl+3contents
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