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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">10.17073/1609-3577j.met202307.547</article-id><article-id custom-type="edn" pub-id-type="custom">WXBMDZ</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-547</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>Атомные структуры и методы структурных исследований</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ATOMIC STRUCTURES AND METHODS OF STRUCTURAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Кристаллическая структура твердых растворов 0,65BiFeO3—0,35Ba1-xSrxTiO3 в области морфотропной фазовой границы</article-title><trans-title-group xml:lang="en"><trans-title>Crystal structure of solid solutions 0.65BiFeO3–0.35Ba1-xSrxTiO3 in the region of morphotropic phase boundary</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6273-3053</contrib-id><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>пл. Шокина, д. 1, Зеленоград, Москва, 124498</p><p>Силибин Максим Викторович — канд. техн. наук, доцент</p></bio><bio xml:lang="en"><p>1 Shokin Sq., Zelenograd, Moscow 124498</p><p>Maxim V. Silibin — Cand. Sci. (Eng.), Associate Professor, Institute of Advanced Materials and Technologies</p></bio><email xlink:type="simple">sil_m@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>Скляр</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sklyar</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ленинский просп., д. 4, стр. 1, Москва, 119049</p><p>Скляр Полнина Алексеевна — магистрант кафедры материаловедения полупроводников и диэлектриков</p></bio><bio xml:lang="en"><p>4-1 Leninsky Ave., Moscow 119049</p><p>Polina A. Sklyar — Master of Science, Laboratory of Physics of Oxide Ferroelectrics</p></bio><email xlink:type="simple">qwerty46.qq@gmail.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/0000-0002-0646-4936</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Живулько</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zvivulko</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. П. Бровки, д. 19, Минск, 220072</p><p>Живулько Вадим Дмитриевич – канд. физ.-мат. наук, заведующий лабораторией оптической спектроскопии полупроводников</p></bio><bio xml:lang="en"><p>19 P. Brovka Str., Minsk 220072</p><p>Vadim D. Zvivulko — Cand. Sci. (Phys.-Math.), Head of the Laboratory of Optical Spectroscopy of Semiconductors</p></bio><email xlink:type="simple">zhivulko@physics.by</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0008-0525</contrib-id><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>пл. Шокина, д. 1, Зеленоград, Москва, 124498, Российская Федерация;</p><p>ул. П. Бровки, д. 19, Минск, 220072, Республика Беларусь</p><p>Латушко Сергей Игоревич — младший научный сотрудник</p></bio><bio xml:lang="en"><p>1 Shokin Sq., Zelenograd, Moscow 124498, Russian Federation;</p><p>19 P. Brovka Str., Minsk 220072, Republic of Belarus</p><p>Sergey I. Latushko — Junior Researcher</p></bio><email xlink:type="simple">latushkasi@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9748-3939</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Желудкевич</surname><given-names>Д. В.</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>пл. Шокина, д. 1, Зеленоград, Москва, 124498, Российская Федерация;</p><p>ул. П. Бровки, д. 19, Минск, 220072, Республика Беларусь</p><p>Желудкевич Дмитрий Викторович — младший научный сотрудник</p></bio><bio xml:lang="en"><p>1 Shokin Sq., Zelenograd, Moscow 124498, Russian Federation;</p><p>19 P. Brovka Str., Minsk 220072, Republic of Belarus</p><p>Dmitry V. Zheludkevich — Junior Researcher</p></bio><email xlink:type="simple">geludkevichdima@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1046-543X</contrib-id><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>пл. Шокина, д. 1, Зеленоград, Москва, 124498, Российская Федерация;</p><p>ул. П. Бровки, д. 19, Минск, 220072, Республика Беларусь</p><p>Карпинский Дмитрий Владимирович — доктор физ.-мат. наук, зав. лабораторией оксидных материалов</p></bio><bio xml:lang="en"><p>1 Shokin Sq., Zelenograd, Moscow 124498, Russian Federation;</p><p>19 P. Brovka Str., Minsk 220072, Republic of Belarus</p><p>Dmitry V. Karpinsky — Dr. Sci. (Phys.-Math.), Head Laboratory of Oxide Materials</p></bio><email xlink:type="simple">dmitry.karpinsky@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский университет «Московский институт электронной техники»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University “Moscow Institute of Electronic Technology”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСИС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-практический центр Национальной академии наук Беларуси по материаловедению</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Национальный исследовательский университет «Московский институт электронной техники»;&#13;
Научно-практический центр Национальной академии наук Беларуси по материаловедению</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>National Research University “Moscow Institute of Electronic Technology”;&#13;
Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>05</day><month>12</month><year>2023</year></pub-date><volume>26</volume><issue>4</issue><fpage>332</fpage><lpage>341</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Силибин М.В., Скляр П.А., Живулько В.Д., Латушко С.И., Желудкевич Д.В., Карпинский Д.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Силибин М.В., Скляр П.А., Живулько В.Д., Латушко С.И., Желудкевич Д.В., Карпинский Д.В.</copyright-holder><copyright-holder xml:lang="en">Silibin M.V., Sklyar P.A., Zvivulko V.D., Latushko S.I., Zheludkevich D.V., 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://met.misis.ru/jour/article/view/547">https://met.misis.ru/jour/article/view/547</self-uri><abstract><p>Сложные оксиды переходных металлов характеризуются тесной взаимосвязью между типом кристаллической структуры, электрическими и магнитными свойствами, что обуславливает их практическую значимость. В твердых растворах на основе феррита висмута присутствует одновременно дипольный электрический и магнитный порядок, что расширяет возможности их практического использования в качестве датчиков внешних воздействий, при этом структурное состояние таких составов в значительной степени обуславливает их восприимчивость к внешним полям. Твердые растворы 0,65BiFeO3—0,35Ba1-xSrxTiO3 (0 ≤ x ≤ 1) c составами в области морфотропной фазовой границы «ромбоэдр—куб» обладают метастабильной структурой, что делает их перспективными функциональными материалами. На основании данных, полученных методами дифракции рентгеновского излучения, сканирующей электронной микроскопии, спектроскопии комбинационного рассеяния, а также энергодисперсионной рентгеновской спектроскопии исследована кристаллическая структура и морфология твердых растворов 0,65BiFeO3—0,35Ba1-xSrxTiO3. Установлено, что химическое замещение ионов бария ионами стронция приводит к уменьшению величины ромбоэдрических искажений, при этом происходит уменьшение параметров элементарной ячейки для всех замещенных составов. Твердые растворы с x ≥ 0,25 характеризуются однофазным структурным состоянием с кубической элементарной ячейкой, средний размер кристаллитов уменьшается с увеличением концентрации ионов-заместителей. Результаты структурных исследований, проведенных методом спектроскопии комбинационного рассеяния, указывают на присутствие ромбоэдрических искажений в структуре всех исследуемых составов. Полученные результаты структурных исследований позволили определить последовательность изменения фазового состояния и параметров кристаллической структуры составов в области морфотропной фазовой границы «ромбоэдр-куб», определены концентрационные интервалы, соответствующие однофазному и двухфазному структурному состоянию составов; с использованием структурных данных, полученных локальными и микроскопическими методами исследования, уточнена область концентрационной стабильности полярной ромбоэдрической фазы.</p></abstract><trans-abstract xml:lang="en"><p>Solid solutions 0.65BiFeO3–0.35Ba1-xSrxTiO3 (0 ≤ x ≤ 1) with the compositions in the vicinity of the morphotropic phase boundary “rhombohedral-cubic” were synthesized by the Solid-state reaction method. The crystal structure and morphology of the ceramics 0.65BiFeO3–0.35Ba1-xSrxTiO3 were studied based on the data obtained by X-ray diffraction, scanning electron microscopy, Raman spectroscopy, as well as energy-dispersive X-ray spectroscopy methods. It was determined that the chemical substitution of barium ions with strontium ions leads to a decrease in the magnitude of rhombohedral distortions, while the unit cell parameters decrease in the whole substitution concentration range. The solid solutions with x ≥ 0.25 are characterized by a single-phase structural state with a cubic unit cell; the average crystallite size decreases with increase of the dopant ions. The results of the structural studies carried out using Raman spectroscopy indicate the presence of rhombohedral distortions in the structure of all studied compounds, which is caused by the presence of nanosized clusters with rhombohedral symmetry. The obtained results made it possible to determine the sequence of the changes occurred in the phase state and the unit cell parameters in the region of the morphotropic phase boundary “rhombohedral -pseudocubic”; the concentration intervals corresponding to the single-phase and two-phase structural states of the compounds were determined. The region of concentration stability of the polar rhombohedral phase was clarified using the structural data obtained by local and microscopic research methods.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>феррит висмута</kwd><kwd>мультиферроики</kwd><kwd>рентгеновская дифракция</kwd><kwd>электронная микроскопия</kwd><kwd>структурные фазовые переходы</kwd><kwd>морфотропная фазовая граница</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bismuth ferrite</kwd><kwd>multiferroics</kwd><kwd>X-ray diffraction</kwd><kwd>electron microscopy</kwd><kwd>structural phase transitions</kwd><kwd>morphotropic phase boundary</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке РНФ (23-19-00347), эксперименты, проведенные методами электронной микроскопии, выполнены при поддержке БРФФИ (Ф23КИ-005).</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">Banoth P., Narsaiah B.P., De Los Santos Valladares L., Kargin J., Kollu P. 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