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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 pub-id-type="doi">10.17586/2220-8054-2023-14-2-254-263</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-151</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>CHEMISTRY AND MATERIALS SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И НАУКА О МАТЕРИАЛАХ</subject></subj-group></article-categories><title-group><article-title>Structural and magnetic study of Tb3+ doped zinc ferrite by sol-gel auto-combustion technique</article-title><trans-title-group xml:lang="ru"><trans-title>Структурные и магнитные исследования допированного Tb3+ феррита цинка, полученного методом автовзгорания геля</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9393-5619</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джамдаде</surname><given-names>Ш. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Jamdade</surname><given-names>Sh. G.</given-names></name></name-alternatives><bio xml:lang="en"><p>Shrinivas G. Jamdade – Department of Physics</p><p>Pune</p></bio><email xlink:type="simple">hvjamdade@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2108-7067</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тамбаде</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tambade</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="en"><p>Popat S. Tambade – Department of Physics, Prof. Ramkrishna More Arts</p><p>Akurdi, Pune</p></bio><email xlink:type="simple">pstam3@rediffmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2357-9791</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ратод</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Rathod</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="en"><p>Sopan M. Rathod – Department of Physics</p><p>Pune</p></bio><email xlink:type="simple">smragc@rediffmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Nowrosjee Wadia College</institution><country>India</country></aff><aff xml:lang="en" id="aff-2"><institution>Commerce and Science College</institution><country>India</country></aff><aff xml:lang="en" id="aff-3"><institution>Abasaheb Garware College</institution><country>India</country></aff><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>03</day><month>06</month><year>2025</year></pub-date><volume>14</volume><issue>2</issue><fpage>254</fpage><lpage>263</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Jamdade S.G., Tambade P.S., Rathod S.M., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Джамдаде Ш.Г., Тамбаде П.С., Ратод С.М.</copyright-holder><copyright-holder xml:lang="en">Jamdade S.G., Tambade P.S., Rathod S.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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/151">https://nanojournal.ifmo.ru/jour/article/view/151</self-uri><abstract><p>In this study, the influence of Tb3+ substitution in zinc ferrite is reported. ZnTbxFe(2-x)O4 (x = 0, 0025, 005, 0075, 01, 0125, and 015) were prepared using sol-gel auto-combustion technique. All the samples were sintered at 400 C for 4 hours. The structure has been studied using XRD, FTIR, UV-visible, and VSM. X-ray diffraction evaluation demonstrates formation of spinel ferrite with nano size distribution. Vibrating sample magnetometer was used to study the magnetic properties of the samples. It was found that as terbium content increases, the coercive field decreases while the saturation magnetization increases. The Tb3+ doped nano crystalline zinc ferrites show ferrimagnetic behavior. FTIR analysis show the presence of two expected bands attributed to tetrahedral and octahedral metal oxygen vibrations at 320 and 450 cm -1.</p></abstract><trans-abstract xml:lang="ru"><p>Статья посвящена исследованию влиянии введения Tb3+ на свойства феррита цинка. ZnTbxFe(2-x)O4 (x = 0, 0,025, 0,05, 0,075, 0,1, 0,125 и 0,15) получали методом автосжигания геля. Все полученные образцы подвергались термообработке при температуре 400°С в течение 4 часов. Структура и свойства были изучены с помощью методов рентгеновской дифракции, ИК- и УФ-спектроскопии и вибрационной магнитометрии. Методом рентгеновской дифракции показано образование нанокристаллов феррита цинка со структурой шпинели. Для исследования магнитных свойств образцов использовался вибрационный магнитометр. Установлено, что с увеличением содержания Tb3+ в системе приводит к уменьшению коэрцитивной силы и увеличению намагниченности насыщения. Нанокристаллический феррит цинка, легированный Tb3+, демонстрирует ферримагнитные свойства. Анализ методом ИК-спектроскопии показывает наличие двух полос, относящихся к колебаниям связи металла-кислород в тетраэдрическом и октаэдрическом окружении - при 320 см-1 и 450 см-1.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>золь-гель метод автосжигания</kwd><kwd>феррит цинка</kwd><kwd>добавка тербия</kwd><kwd>кубическая структура шпинели</kwd><kwd>наноструктура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sol-gel auto-combustion technique</kwd><kwd>zinc ferrite</kwd><kwd>terbium additive</kwd><kwd>cubic spinel structure</kwd><kwd>nano structure</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Hu J.Y., Liu X.S., Kan X.C., Feng S.J., Liu C.C., Wang W., Rehman K.M.U., Shazed M., Zhou S.Q., Wu Q.Y. Characterization of texture and magnetic properties of Ni05Zn05TixFe2 xO4 spinel ferrites. J. Magn. Magn. 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