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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2022-66-4-397-403</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-1078</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Кристаллическая структура системы твердых растворов (1-y)(BiFeO3)-y(Ba1-xSrxTiO3)</article-title><trans-title-group xml:lang="en"><trans-title>Crystal structure of the system of (1-y)(BiFeO3)-y(Ba1-xSrxTiO3) solid solution.</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>Желудкевич</surname><given-names>Д. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Zheludkevich</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Желудкевич Дмитрий Викторович – младший научный сотрудник.</p><p>ул. П. Бровки, 19, 220072, Минск</p></bio><bio xml:lang="en"><p>Zheludkevich Dmitry V. – Junior Researcher. </p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">geludkevichdima@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Латушко</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Latushko</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Латушко Сергей Игоревич – младший научный cотрудник.</p><p>ул. П. Бровки, 19, 220072, Минск</p></bio><bio xml:lang="en"><p>Latushko Sergei I. – Junior Researcher. </p><p>19, P. Brovka Str., 220072, Minsk</p><p> </p></bio><email xlink:type="simple">smer444@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Силибин</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Silibin</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Силибин  Максим  Викторович  –  кандидат  технических  наук, доцент. </p><p>пл. Шокина, 1, 124498, Зеленоград</p></bio><bio xml:lang="en"><p>Silibin Maxim V. – Ph. D. (Engineering), Assistant Professor. </p></bio><email xlink:type="simple">sil_m@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чобот</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Chobot</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чобот  Александра  Николаевна  –  кандидат физико-математических наук, старший научный сотрудник. </p><p>ул. П. Бровки, 19, 220072, Минск</p><p> </p></bio><bio xml:lang="en"><p>Chobot Aleksandra N. – Ph. D. (Physics and Mathematics), Senior Researcher. </p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">a.n.chobot@tut.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сыса</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sysa</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сыса Артём Владимирович – кандидат технических наук, старший научный сотрудник. </p><p>пл. Шокина, 1, 124498, Зеленоград</p></bio><bio xml:lang="en"><p>Sysa Artem V. – Ph. D. (Engineering), Senior Researcher. </p><p>1, Shokin sq., 124498, Zelenograd</p></bio><email xlink:type="simple">sysa.artem@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Неклюдов</surname><given-names>К. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Neklyudov</surname><given-names>K. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Неклюдов Капитон Николаевич – младший научный сотрудник. </p><p>пл. Шокина, 1, 124498, Зеленоград</p></bio><bio xml:lang="en"><p>Neklyudov Kapiton N. – Junior Researcher.</p><p>1, Shokin sq., 124498, Zelenograd</p></bio><email xlink:type="simple">neklyudovk@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чобот</surname><given-names>Г. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Chobot</surname><given-names>G. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чобот Геннадий Михайлович – кандидат физико-математических наук, доцент. </p><p>пр.  Независимости,  99,  220023, Минск</p><p> </p></bio><bio xml:lang="en"><p>Chobot Gennadii M. – Ph. D. (Physics and Mathematics), Assistant Professor. </p><p>99, Nezavisimosti Ave., 220023, Minsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карпинский</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Karpinsky</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карпинский Дмитрий Владимирович – кандидат физико-математических наук, заведующий лабораторией. </p><p>ул. П. Бровки, 19, 220072, Минск</p><p> </p></bio><bio xml:lang="en"><p>Karpinsky Dmitry V. – Ph. D. (Physics and Mathematics), Head of the Laboratory.</p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">karpinsky@ifttp.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-практический центр Национальной академии наук Беларуси по материаловедению</institution></aff><aff xml:lang="en"><institution>Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский университет электронной техники «МИЭТ»</institution></aff><aff xml:lang="en"><institution>National Research University of Electronic Technology “MIET”</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Белорусский государственный аграрный технический университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Agrarian Technical Universit</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>08</day><month>09</month><year>2022</year></pub-date><volume>66</volume><issue>4</issue><fpage>397</fpage><lpage>403</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Желудкевич Д.B., Латушко С.И., Силибин М.В., Чобот А.Н., Сыса А.В., Неклюдов К.Н., Чобот Г.М., Карпинский Д.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Желудкевич Д.B., Латушко С.И., Силибин М.В., Чобот А.Н., Сыса А.В., Неклюдов К.Н., Чобот Г.М., Карпинский Д.В.</copyright-holder><copyright-holder xml:lang="en">Zheludkevich D.V., Latushko S.I., Silibin M.V., Chobot A.N., Sysa A.V., Neklyudov K.N., Chobot G.M., Karpinsky D.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://doklady.belnauka.by/jour/article/view/1078">https://doklady.belnauka.by/jour/article/view/1078</self-uri><abstract><p>Кристаллическая структура система: твердых растворов (1-y)(BiFeO3)-y(Ba1-xSrxTiO3)  (0 ≤  x ≤ 1; 0,2 ≤  y ≤  0,4) определена на основании данных, полученных методом дифракции рентгеновского излучения, а также результатов сканирующей электронной микроскопии. Полученные результаты позволили уточнить концентраццонные области однофазного структурного состояния, а также области сосуществования двух структурных фаз в исследуемой системе. Показано, что увеличение концентрации ионов-заместителей приводит к уменьшению ромбоэдрических искажений. Структуру составов c у = 0,25-0,33 можно уточнить, предполагая сосуществование ромбоэдрической и псевдокубической фаз. Дальнейшее замещение приводит к трансформации структуры, она становится однофазной с кубической симметрией. Расщепление рефлексов, характеризующих ромбоэдрическую фазу, полностью исчезает для составов с у = 0,35; 0,40. Особое внимание уделено анализу структуры твердых растворов в области концентрационного фазового перехода. Определена эволюция морфологии кристаллитов в зависимости от типа структурных искажений и концентрации ионов стронция.</p></abstract><trans-abstract xml:lang="en"><p>The crystal structure of the system of (1-y)(BiFeO3)-y(Ba1-xSrxTiO3)  (0 ≤ x ≤1; 0,2 ≤ y ≤ 0,4) solid solutions was studied based on the X-ray diffraction data and the scanning electron microscopy results. The obtained results have allowed determining the concentration ranges of a single-phase structural state, as well as the regions of coexistence of two structure phases. It is shown that an increase in the concentration of the dopant ions leads to a decrease in rhombohedral distortions. The structure of the compounds with y = 0.25-0.33 is characterized by the coexistence of the rhombohedral and pseudocubic phases. Further chemical doping leads to the transformation of the structure; it becomes single-phase and has a cubic symmetry.  Splitting of the reflections specific to the rhombohedral phase completely disappears for the compounds with y = 0.35; 0.40. Particular attention is paid to the analysis of the structure of solid solutions in the region of the concentration phase transition. The evolution of crystallite morphology was determined as a function of the type of structure distortions and dopants concentration.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>твердые растворы</kwd><kwd>мультиферроики</kwd><kwd>рентгеновская дифракция</kwd><kwd>структурные фазовые переходы</kwd><kwd>ионы-заместители</kwd></kwd-group><kwd-group xml:lang="en"><kwd>solid solutions</kwd><kwd>multiferroics</kwd><kwd>X-ray diffraction</kwd><kwd>structural phase transitions</kwd><kwd>dopant ions</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнены при поддержке РФФИ (проект № 20-58-04003Бел_мол_а) и БРФФИ (проект № Ф21РМ-018).</funding-statement><funding-statement xml:lang="en">The work is supported by the RFBR (project № 20-58-04003Бел_мол_а) and BRFFR (project № Ф21РМ-018).</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">Phase stability and structural temperature dependence in powdered multiferroic BiFeO3 / R. 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