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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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</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">10.29235/1561-2430-2020-56-2-232-238</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-525</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>Треугольная магнитная структура соединения Mn3Sb</article-title><trans-title-group xml:lang="en"><trans-title>Triangular magnetic structure of the Mn3Sb compound</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>Гончаров</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гончаров Владимир Сергеевич – кандидат физико-математических наук, старший научный сотрудник лаборатории физики магнитных материалов</p><p>ул. П. Бровки, 19, 220072, г. Минск </p></bio><bio xml:lang="en"><p>Vladimir S. Goncharov – Ph. D. (Physics and Mathematics), Senior Researcher of the Laboratory of Physics of Magnetic</p><p>19, P. Brovka Str., 220072, Minsk </p></bio><email xlink:type="simple">goncharov@physics.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>Труханов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Trukhanov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Труханов Сергей Валентинович – кандидат физико-математических наук, ведущий научный сотрудник лаборатории технологии и физики роста кристаллов</p><p>ул. П. Бровки, 19, 220072, г. Минск </p></bio><bio xml:lang="en"><p>Sergei V. Trukhanov – Ph. D. (Physics and Mathematics), Leading Researcher of the Laboratory of the Technology and Physics</p><p>19, P. Brovka Str., 220072, Minsk </p></bio><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-Practical Materials Research Centre of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>08</day><month>07</month><year>2020</year></pub-date><volume>56</volume><issue>2</issue><fpage>232</fpage><lpage>238</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гончаров В.С., Труханов С.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Гончаров В.С., Труханов С.В.</copyright-holder><copyright-holder xml:lang="en">Goncharov V.S., Trukhanov S.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://vestifm.belnauka.by/jour/article/view/525">https://vestifm.belnauka.by/jour/article/view/525</self-uri><abstract><p>Метастабильное соединение Mn3Sb образуется при высоком давлении и температуре и распадается при нагревании выше 420 К на Mn2Sb и Mn. Имеет кубическую кристаллическую структуру, описываемую пространственной группой Pm-3m (№ 221) с параметром решетки a = 0,400 нм. В настоящей работе по результатам нейтронографических исследований и с учетом данных магнитометрии показано, что Mn3Sb является антиферромагнетиком, и предложена модель магнитной структуры с треугольной конфигурацией равных по величине магнитных моментов. Магнитные моменты атомов марганца, составляющие базис элементарной магнитной ячейки, лежат в плоскости (111) и образуют равносторонний треугольник. По нейтронографическим данным определены магнитные моменты атомов марганца при разных температурах.</p></abstract><trans-abstract xml:lang="en"><p>The Mn3Sb metastable compound is formed at high pressure and temperature and it decomposes upon heating above 420 K into Mn2Sb and Mn. It has a cubic crystalline structure describing the Pm-3m (№ 221) space group with a lattice parameter of a = 0.400 nm. In the present work, according to the results of neutron diffraction investigations and taking into account magnetometry data, it is shown that Mn3Sb is an antiferromagnet, and a model of the magnetic structure with a triangular configuration of equal magnetic moments in magnitude is proposed. The magnetic moments of manganese atoms, constituting the basis of a unit magnetic cell, lie in the (111) plane and form an equilateral triangle. According to neutron diffraction data, the magnetic moments of manganese atoms were determined at different temperatures.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>соединение Mn3Sb</kwd><kwd>магнитная структура</kwd><kwd>антиферромагнетик</kwd><kwd>нейтронная дифракция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Mn3Sb compound</kwd><kwd>magnetic structure</kwd><kwd>antiferromagnet</kwd><kwd>neutron diffraction</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Mn 3Sb: a new L12-type intermetallic compound synthesized under high-pressure / T. Yamashita [et al.] // J. Alloys Comp. – 2003. – Vol. 348, № 1/2. – P. 220–223. https://doi.org/10.1016/s0925-8388(02)00834-4</mixed-citation><mixed-citation xml:lang="en">Yamashita T., Takizawa H., Sasaki T., Uheda K., Endo T. Mn3Sb: a new L12-type intermetallic compound synthesized under high-pressure. 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