Bittu Singh, M. Kuppam, Bhaskaraiah M., Pushpalatha Kavuluri, Rajendra Joshi, Bhuwan Chandra
{"title":"Structural and Temperature Dependent-Magnetic and Dielectric Properties of CoNdxFe2-xO4 (0≤ x ≤0.1) Nanoparticles","authors":"Bittu Singh, M. Kuppam, Bhaskaraiah M., Pushpalatha Kavuluri, Rajendra Joshi, Bhuwan Chandra","doi":"10.1149/2162-8777/ad2199","DOIUrl":null,"url":null,"abstract":"\n We present an investigation into the structural and magnetic properties of neodymium-doped cobalt ferrites, described by the general formula CoNdxFe2-xO4 (where x=0, 0.02, 0.04, 0.06, 0.08 & 0.10). CoNdxFe2-xO4 nanoparticles were synthesized using sol-gel auto-combustion method with tartaric acid employed as a chelating agent. The strength of the X-Ray diffraction (XRD) peak diminishes as the concentration of Nd3+ increases from 0 to 0.10 mol%, implying that crystallization is hindered due to relatively large ion radii. The crystallite size decreases from 22 nm to 12 nm, with an increase in Nd3+ concentration from 0 to 0.1 mol% in CoFe2O4. Scanning electron microscopy (SEM) studies reveal irregularly shaped particles with a homogenous distribution. The hysteresis loop obtained from the Vibrating-sample magnetometer (VSM) indicates the formation of soft magnetic materials, with magnetization values decreasing from 53 emu/g (x=0) to 40 emu/g (x=0.10) at 3K and from 32 emu/g (x=0) to 20 emu/g (x=0.10) at 300K. Interestingly, the highest coercivity and highest anisotropy constant (K) were observed for the sample x=0.04.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ECS Journal of Solid State Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1149/2162-8777/ad2199","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
We present an investigation into the structural and magnetic properties of neodymium-doped cobalt ferrites, described by the general formula CoNdxFe2-xO4 (where x=0, 0.02, 0.04, 0.06, 0.08 & 0.10). CoNdxFe2-xO4 nanoparticles were synthesized using sol-gel auto-combustion method with tartaric acid employed as a chelating agent. The strength of the X-Ray diffraction (XRD) peak diminishes as the concentration of Nd3+ increases from 0 to 0.10 mol%, implying that crystallization is hindered due to relatively large ion radii. The crystallite size decreases from 22 nm to 12 nm, with an increase in Nd3+ concentration from 0 to 0.1 mol% in CoFe2O4. Scanning electron microscopy (SEM) studies reveal irregularly shaped particles with a homogenous distribution. The hysteresis loop obtained from the Vibrating-sample magnetometer (VSM) indicates the formation of soft magnetic materials, with magnetization values decreasing from 53 emu/g (x=0) to 40 emu/g (x=0.10) at 3K and from 32 emu/g (x=0) to 20 emu/g (x=0.10) at 300K. Interestingly, the highest coercivity and highest anisotropy constant (K) were observed for the sample x=0.04.