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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mateltech</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Материалы электронной техники</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-3577</issn><issn pub-type="epub">2413-6387</issn><publisher><publisher-name>MISIS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1609-3577-2018-4-207-215</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-403</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="ru"><subject>Наноматериалы и нанотехнологии</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NANOMATERIALS AND NANOTECHNOLOGY</subject></subj-group></article-categories><title-group><article-title>Исследования структуры, морфологии и диэлектрических свойств наночастиц Co1-xZrxFe2O4</article-title><trans-title-group xml:lang="en"><trans-title>Structural, morphological and dielectric studies of zirconium substituted CoFe2O4 nanoparticles</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ананд</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Anand</surname><given-names>S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Амалия</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Amaliya</surname><given-names>A. P.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Асиси</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Asisi</surname><given-names>M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полин</surname><given-names>Дж. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pauline</surname><given-names>J. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Колледж Лойола<country>Индия</country></aff><aff xml:lang="en">Department of Physics, Loyola College<country>India</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>25</day><month>01</month><year>2021</year></pub-date><volume>21</volume><issue>4</issue><fpage>207</fpage><lpage>215</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ананд С., Амалия А.П., Асиси М., Полин Д.С., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Ананд С., Амалия А.П., Асиси М., Полин Д.С.</copyright-holder><copyright-holder xml:lang="en">Anand S., Amaliya A.P., Asisi M., Pauline J.S.</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://met.misis.ru/jour/article/view/403">https://met.misis.ru/jour/article/view/403</self-uri><abstract><p>Магнитные наночастицы привлекают внимание исследователей благодаря широкому спектру их возможных применений в современных технологиях, включая магнитные носители информации с высокой плотностью данных, микроволновые устройства, сенсоры высокой чувствительности, биомедицину. Наночастицы феррита кобальта (CoFe2O4) обладают уникальными свойствами: высокая магнитокристаллическая анизотропия, средняя намагниченности насыщения, высокая коэрцитивная сила и высокий магнитострикцонный коэффициент при комнатной температуре. Эти свойства, наряду с отличной физической и химической стабильностью, делают наночастицы CoFe2O4 перспективным материалом для создания магнитных носителей информации — аудио и видео пленки и цифровых магнитных дисков с высокой плотностью данных. Для улучшения свойств наночастиц феррита кобальта используют различные замещающие элементы магнитной и немагнитной природы, например Ni, Zn и Al. Однако существует очень мало работ по замещению наночастиц феррита кобальта цирконием. Исследовано влияние замещения цирконием кобальта в кубическом нанокристаллическом CoFe2O4 со структурой шпинели на структуру, морфологию и диэлектрические свойства. Наночастицы феррита кобальта Co1-xZrxFe2O4 (x = 0,7) с замещением кобальта цирконием выращивались золь-гель методом. Проведены структурные и морфологические исследования с использованием порошковой рентгеновской дифрактометрии и сканирующей электронной микроскопии высокого разрешения. Для определения размеров кристаллитов и деформации решетки в образцах использовались методы Шеррера и Вильямсона—Холла. Высокая чистота химического состава образцов была подтверждена методом энергодисперсионной рентгеновской спектрометрии. Осцилляционные моды атомов в синтезированных наночастицах определялись при помощи ИК-Фурье-спектроскопии. Также исследована температурная зависимость диэлектрических свойств наночастиц Co1-xZrxFe2O4 (x = 0,7). Относительную диэлектрическую пропускную способность, тангенс потерь и электропроводность при постоянном токе измеряли в диапазоне частот от 50 до 5 МГц при температурах от 323 до 473 К. Диэлектрическая проницаемость и величина диэлектрических потерь образцов уменьшались при увеличении частоты приложенного сигнала.</p></abstract><trans-abstract xml:lang="en"><p>In this work, the influence of zirconium substitution in cubic spinel nanocrystalline CoFe2O4 on the structural, morphological and dielectric properties are reported. Zirconium substituted cobalt ferrite Co1-xZrxFe2O4 (x = 0.7) nanoparticles were synthesized by sol-gel route. The structural and morphological investigations using powder X-ray diffraction and high resolution scanning electron microscope (HRSEM) analysis are reported. Scherrer plot, Williamson–Hall analysis and Size-strain plot method were used to calculate the crystallite size and lattice strain of the samples. High purity chemical composition of the sample was confirmed by energy dispersive X-ray analysis. The atoms vibration modes of as synthesized nanoparticles were recorded using Fourier transform infrared (FTIR) spectrometer in the range of 4000–400 cm-1. The temperature-dependent dielectric properties of zirconium substituted cobalt ferrite nanoparticles were also carried out. Relative dielectric permittivity, loss tangent and AC conductivity were measured in the frequency range 50 Hz to 5 MHz at temperatures between 323 and 473 K. The dielectric constant and dielectric loss values of the sample decreased with increasing in the frequency of the applied signal.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>золь-гель</kwd><kwd>рентгеновская дифрактометрия</kwd><kwd>зависимость между размером зерен и деформацией</kwd><kwd>HRSEM</kwd><kwd>исследование диэлектрических свойств</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sol-gel</kwd><kwd>XRD</kwd><kwd>size-strain analysis</kwd><kwd>HRSEM</kwd><kwd>dielectric studies</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Авторы выражают признательность SAIF, IITM (Чиннаи) за проведение анализа HRSEM.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The authors are grateful to SAIF, IITM, Chennai for providing HRSEM analysis.</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">Sharifi I., Shokrollahi H., Mahdi Doroodmand M., Safi R. 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