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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestift-253</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>МАТЕРИАЛОВЕДЕНИЕ, МЕТАЛЛУРГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIALS SCIENCES AND ENGINEERING, METALLURGY</subject></subj-group></article-categories><title-group><article-title>НИЗКОТЕМПЕРАТУРНОЕ МАГНИТНОЕ УПОРЯДОЧЕНИЕ В НАНОРАЗМЕРНЫХ ЗЕРНАХ Sr2FeMoO6–δ</article-title><trans-title-group xml:lang="en"><trans-title>LOW-TEMPERATURE MAGNETIC ORDERING IN Sr2FeMoO6–δ NANO-SIZED GRAINS</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>ЯРМОЛИЧ</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>YARMOLICH</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">jarmolich@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>КАЛАНДА</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>KALANDA</surname><given-names>N. A.</given-names></name></name-alternatives><email xlink:type="simple">kalanda@physics.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 НАН Беларуси по материаловедению</institution></aff><aff xml:lang="en"><institution>The Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>20</day><month>11</month><year>2016</year></pub-date><volume>0</volume><issue>3</issue><fpage>16</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ЯРМОЛИЧ М.В., КАЛАНДА Н.А., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">ЯРМОЛИЧ М.В., КАЛАНДА Н.А.</copyright-holder><copyright-holder xml:lang="en">YARMOLICH M.V., KALANDA N.A.</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://vestift.belnauka.by/jour/article/view/253">https://vestift.belnauka.by/jour/article/view/253</self-uri><abstract><p>Однофазные наноразмерные порошки Sr2FeMoO6-d синтезированы цитрат-гель-методом при pH = 4, 6, 9 с различной степенью сверхструктурного упорядочения катионов Fe3+ и Mo5+ (Р = 65% д ля pH = 4, Р = 51% д ля pH = 6 и Р = 20% для pH = 9). Интервал значений размера зерен для всех порошков составляет 200-600 нм, причем наибольшее количество зерен, имеющих размер примерно 550 нм, характерно для порошков с pH = 9, а примерно 230 нм для pH = 4. Установлено уменьшение величины P с ростом рН, что указывает на увеличение числа кластеров –Fe2+-О2-Fe2+- с антипараллельным распределением спинов железа, приводящее к снижению суммарного магнитного момента и значений температур Кюри. В порошках, синтезированных при pH = 4, количество низкоразмерных зерен значительно больше, чем в порошках при pH = 6, 9, что обусловило их большую намагниченность при Т = 4,2-19 K.</p></abstract><trans-abstract xml:lang="en"><p>Single-phase nanosized Sr2FeMoO6-d powders were synthesized by the citrate-gel-method at pH = 4, 6, 9, with various degrees of superstructural ordering of Fe3+ and Mo5+ (P = 65% for pH = 4, P = 51% for pH = 6 and P = 20 % for pH = 9). Grain size of the powders are in the range of 200–600 nm. With that, the largest number of grains having a size of 550 nm was characteristic for powders with pH = 9 and 230 nm for pH = 4. It was established that the value of P decreases with increasing pH, which indicates an increase in the number of –Fe2+-О2--Fe2+- clusters with antiparallel distribution of iron spins which leads to a decrease in the total magnetic moment and the Curie temperature. In powders with pH = 4 the number of low dimensional grain is significantly larger than in powders with pH = 6 and 9, which led to their large magnetization value at T = 4,2- 19 K.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ферромолибдат стронция</kwd><kwd>цитрат-гель-метод</kwd><kwd>сверхструктурное упорядочение</kwd><kwd>намагниченность</kwd><kwd>суперпарамагнитное состояние</kwd></kwd-group><kwd-group xml:lang="en"><kwd>strontium ferromolybdate</kwd><kwd>citrate-gel-method</kwd><kwd>superstructural ordering</kwd><kwd>magnetization</kwd><kwd>superparamagnetic state</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">Influence of preparation method on SrMoO4 impurity content and magnetotransport properties of double perovskite Sr2FeMoO6 polycrystals / C. L. Yuan [et al.] // Sol. Stat. 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