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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">najo-1296</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="en"><subject>CHEMISTRY AND MATERIAL SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group></article-categories><title-group><article-title>Structure peculiarities of nanocrystalline solid solutions in GdAlO3 – GdFeO3 system</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Tugova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Saint Petersburg</p></bio><email xlink:type="simple">katugova@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Gusarov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Saint Petersburg</p></bio><email xlink:type="simple">victor.v.gusarov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Ioffe Physical Technical Institute of RAS;&#13;
Saint Petersburg State Institute of Technology</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>21</day><month>08</month><year>2025</year></pub-date><volume>4</volume><issue>3</issue><fpage>352</fpage><lpage>356</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Tugova E.A., Gusarov V.V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Tugova E.A., Gusarov V.V.</copyright-holder><copyright-holder xml:lang="en">Tugova E.A., Gusarov V.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://nanojournal.ifmo.ru/jour/article/view/1296">https://nanojournal.ifmo.ru/jour/article/view/1296</self-uri><abstract><p>Nanoparticles of solid solutions in GdAlO3 — GdFeO3 system have been synthe- sized. Plots of crystalline sizes for GdAl1−xFexO3 series versus GdFeO3 composition have been constructed. The sizes of solid solution nanoparticles were shown to decrease in com- parison to the sizes of nanocrystalline individual compounds. The observed regularities allowed us to assume the formation of nanocrystalline GdAl1−xFexO3 series with core-shell morphology.</p></abstract><kwd-group xml:lang="en"><kwd>nanostructures</kwd><kwd>solid solutions</kwd><kwd>precipitation technique</kwd><kwd>non-autonomous phases</kwd><kwd>core-shell nanoparticles</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was financially supported by the Russian Foundation for Basic Research, project No ¯ 13-03-00888.</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">Stølen S., Grønvold F., Brinks H. 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