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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Inorganic Materials</journal-id><journal-title-group><journal-title xml:lang="en">Inorganic Materials</journal-title><trans-title-group xml:lang="ru"><trans-title>Неорганические материалы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0002-337X</issn><issn publication-format="electronic">3034-5588</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">686889</article-id><article-id pub-id-type="doi">10.31857/S0002337X25010015</article-id><article-id pub-id-type="edn">KEJVQM</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Магнитная фазовая диаграмма твердого раствора Fe<sub>1−x</sub>Co<sub>x</sub>Cr<sub>2</sub>S<sub>4</sub>(0&lt; x&lt; 1)</article-title><trans-title-group xml:lang="ru"><trans-title>Магнитная фазовая диаграмма твердого раствора Fe<sub>1−x</sub>Co<sub>x</sub>Cr<sub>2</sub>S<sub>4</sub>(0&lt; x&lt; 1)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name><surname>Шабунина</surname><given-names>Г. Г.</given-names></name><address><country country="RU">Russian Federation</country></address><email>busheva@igic.ras.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Бушева</surname><given-names>Е. В.</given-names></name><address><country country="RU">Russian Federation</country></address><email>busheva@igic.ras.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Васильев</surname><given-names>П. Н.</given-names></name><address><country country="RU">Russian Federation</country></address><email>busheva@igic.ras.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Денищенко</surname><given-names>А. Д.</given-names></name><address><country country="RU">Russian Federation</country></address><email>busheva@igic.ras.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Ефимов</surname><given-names>Н. Н.</given-names></name><address><country country="RU">Russian Federation</country></address><email>busheva@igic.ras.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en"></institution></aff><aff><institution xml:lang="ru">Институт общей и неорганической химии им. Н. С. Курнакова Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2025</year></pub-date><volume>61</volume><issue>1-2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>3</fpage><lpage>17</lpage><history><date date-type="received" iso-8601-date="2025-07-07"><day>07</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-07"><day>07</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0002-337X/article/view/686889">https://transsyst.ru/0002-337X/article/view/686889</self-uri><abstract xml:lang="ru"><p>Измерены магнитные свойства твердых растворов Fe<sub>1–<italic>x</italic></sub>Co<italic><sub>x</sub></italic>Cr<sub>2</sub>S<sub>4</sub> (0 &lt; <italic>x</italic> &lt; 1) в интервале температур 5–300 К в переменном магнитном поле. Динамические свойства измерялись при частотах 100, 1000 и 10 000 Гц и амплитуде, увеличенной до 15 Э, что позволило четко отследить температуры переходов, а также определить характер магнитных переходов при пониженных температурах. На основании измеренных динамических свойств построена магнитная фазовая диаграмма системы FeCr<sub>2</sub>S<sub>4</sub>–CoCr<sub>2</sub>S<sub>4</sub>. Показано, что основное поле занимают парамагнетик, ферримагнетик и возвратное спиновое стекло. Найдено, что все образцы являются ферримагнетиками с температурами Кюри, увеличивающимися от 185<italic> </italic>К (<italic>x</italic> = 0) до 223 К (<italic>x</italic> = 1) с ростом концентрации вводимого кобальта.</p></abstract><trans-abstract xml:lang="en"><p/></trans-abstract><kwd-group xml:lang="ru"><kwd>халькогенидная шпинель</kwd><kwd>спиновое стекло</kwd><kwd>магнитная диаграмма</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gibart P., Dormann I.L., Pellerin Y. Magnetic properties of FeCr2S4 and CoCr2S4 // Phys. Status Solidi. 1969. V. 36. № 2. 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