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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">najo-1326</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PAPERS, PRESENTED AT MAM-12</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>PAPERS, PRESENTED AT MAM-12</subject></subj-group></article-categories><title-group><article-title>Effect of Sintering Temperature on the Structural and Magnetic Properties of Cobalt Ferrite Nanoparticles</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Xavier</surname><given-names>Sheena</given-names></name></name-alternatives><bio xml:lang="en"><p>Research Department of Physics</p></bio><email xlink:type="simple">sheena.xavier1@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Thankachan</surname><given-names>Smitha</given-names></name></name-alternatives><bio xml:lang="en"><p>Research Department of Physics</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Jacob</surname><given-names>Binu P.</given-names></name></name-alternatives><bio xml:lang="en"><p>Research Department of Physics</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Mohammed</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="en"><p>Research Department of Physics</p></bio><email xlink:type="simple">emmohammed_2005@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="en">Maharaja’s College&#13;
Ernakulam, Kerala<country>India</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>21</day><month>08</month><year>2025</year></pub-date><volume>4</volume><issue>3</issue><fpage>430</fpage><lpage>437</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Xavier S., Thankachan S., Jacob B.P., Mohammed E.M., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Xavier S., Thankachan S., Jacob B.P., Mohammed E.M.</copyright-holder><copyright-holder xml:lang="en">Xavier S., Thankachan S., Jacob B.P., Mohammed E.M.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nanojournal.ifmo.ru/jour/article/view/1326">https://nanojournal.ifmo.ru/jour/article/view/1326</self-uri><abstract><p>Cobalt ferrite nanoparticles have been synthesized by the sol-gel method. The prepared sample was sintered at four different temperatures (300 ˚ C, 400 ˚ C, 500 ˚ C and 700 ˚ C) for four hours. The structural charac- terizations of all the prepared samples were done using XRD, TEM and FTIR. Crystallite size was found to increase with sintering temperature and this can be attributed to the grain growth of the particles. The par- ticle size of each sample was determined using TEM. The FTIR spectra show two strong absorption bands in the range of 1000–400 cm−1, characteristic of spinel ferrites. The room temperature magnetic measurements showed a strong influence of sintering temperature on saturation magnetization and coercivity</p></abstract><kwd-group xml:lang="en"><kwd>sol gel</kwd><kwd>ferrites</kwd><kwd>sintering temperature</kwd><kwd>magnetic properties</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>SX acknowledges the University Grants Commission of India for providing teacher fellowship. EMM thanks DST and UGC for the financial support. Authors thank SAIF, CUSAT Kochi, SAIF, IIT Madras and SAIF IIT Mumbai for providing XRD, FTIR, VSM and TEM measurement facilities.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Veena Gopalan E., Joy P.A., I.A Al-Omari, Sakthi Kumar D., Yasuhiko Yoshida, Anantharaman M.R, On the Structural, Magnetic and Electrical Properties of Sol-gel derived Nanosized Cobalt Ferrite. J. Alloys compd, 485, P. 711–717 (2009).</mixed-citation><mixed-citation xml:lang="en">Veena Gopalan E., Joy P.A., I.A Al-Omari, Sakthi Kumar D., Yasuhiko Yoshida, Anantharaman M.R, On the Structural, Magnetic and Electrical Properties of Sol-gel derived Nanosized Cobalt Ferrite. J. 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