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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">vestnovsu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Новгородского государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik of Novgorod State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2076-8052</issn><publisher><publisher-name>Новгородский государственный университет имени Ярослава Мудрого</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.34680/2076-8052.2023.5(134).807-814</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnovsu-274</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Влияние магнитострикционной фазы на мультикалорический эффект в магнитострикционно-сегнетоэлектрическом композите</article-title><trans-title-group xml:lang="en"><trans-title>Magnetostrictive phase influence on multicaloric effect in magnetostrictive-ferroelectric composite</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7733-1030</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петров Владимир Михайлович – доктор технических наук, профессор, профессор, главный научный сотрудник</p><p>Великий Новгород </p></bio><bio xml:lang="en"><p> Veliky Novgorod </p></bio><email xlink:type="simple">Vladimir.Petrov@novsu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-9052-7987</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саплев</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Saplev</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саплев Алексей Фёдорович – преподаватель</p><p>Великий Новгород </p></bio><bio xml:lang="en"><p> Veliky Novgorod </p></bio><email xlink:type="simple">Alexey.Saplev@novsu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8704-6751</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврушко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrushko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гаврушко Валерий Владимирович – доктор технических наук, профессор</p><p> Великий Новгород </p></bio><bio xml:lang="en"><p> Veliky Novgorod </p></bio><email xlink:type="simple">Valery.Gavrushko@novsu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новгородский государственный университет имени Ярослава Мудрого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslav-the-Wise Novgorod State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>07</day><month>02</month><year>2024</year></pub-date><volume>0</volume><issue>5(134)</issue><fpage>807</fpage><lpage>814</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петров В.М., Саплев А.Ф., Гаврушко В.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Петров В.М., Саплев А.Ф., Гаврушко В.В.</copyright-holder><copyright-holder xml:lang="en">Petrov V.M., Saplev A.F., Gavrushko V.V.</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://vestnovsu.elpub.ru/jour/article/view/274">https://vestnovsu.elpub.ru/jour/article/view/274</self-uri><abstract><p>Изучена зависимость мультикалорического эффекта в двухслойной структуре на основе титаната бария и феррита кобальта от объемной доли  сегнетоэлектрика при использовании термодинамического подхода Ландау-Гинзбурга.  Показано, что электрокалорический эффект можно регулировать с помощью объемной доли  сегнетоэлектрика. Приложение магнитного поля  является эффективным подходом для повышения мультикалорического эффекта в  магнитострикционно-сегнетоэлектрической структуре. Выбор магнитной компоненты оптимального состава, позволяющей создать в сегнетоэлектрическом слое необходимое  механическое напряжение и обладающей магнитокалорическим эффектом в соответствующем диапазоне температур, позволит повысить мультикалорический эффект в двухслойной  структуре. </p></abstract><trans-abstract xml:lang="en"><p> The ferroelectric volume fraction dependence of the multicaloric effect in a bilayer of barium titanate and cobalt ferrite was studied using the Landau-Ginzburg thermodynamic approach. It is shown that the electrocaloric effect can be controlled using the volume fraction of the ferroelectric. Magnetic field application is an effective tool to enhance the multicaloric effect in a magnetostrictive-ferroelectric structure. The choice of an optimal magnetic component which has a magnetocaloric effect in the appropriate temperature range and enables generating the necessary mechanical stress in ferroelectric layer, will increase the multicaloric effect in a bilayer. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>математическое моделирование</kwd><kwd>электрокалорический эффект</kwd><kwd>магнитокалорический эффект</kwd><kwd>эластокалорический эффект</kwd><kwd>мультиферроик</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mathematical modeling</kwd><kwd>electrocaloric effect</kwd><kwd>magnetocaloric effect</kwd><kwd>elastocaloric effect</kwd><kwd>multiferroic</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 22- 21-20119, https://rscf.ru/project/ 22-21-20119/.</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">De Oliveira N. 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