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    <journal-meta>
      <journal-id journal-id-type="issn">1561-5405</journal-id>
	    <journal-id journal-id-type="doi">10.24151/1561-5405</journal-id>	  
      <journal-id journal-id-type="publisher-id">Proceedings of Universities. Electronics</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Scientifical and technical journal "Proceedings of Universities. Electronics"</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Научно-технический журнал «Известия высших учебных заведений. Электроника»</trans-title>
        </trans-title-group>        
      </journal-title-group>      
      <issn publication-format="print">1561-5405</issn>
      <issn publication-format="online">2587-9960</issn>
      <publisher>
        <publisher-name xml:lang="en">National Research University of Electronic Technology</publisher-name>
        <publisher-name xml:lang="ru">Национальный исследовательский университет "Московский институт электронной техники"</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>                                    
      
    <article-id pub-id-type="doi">10.24151/1561-5405-2024-29-1-19-29</article-id><article-id pub-id-type="risc">YTGJJM</article-id><article-id pub-id-type="udk">544.225.22/.23+544.183.24/.25:538.911+538.615</article-id><article-categories><subj-group><subject>Mатериалы электроники</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Electronic structure of bismuth ferromanganite BiFe0.5Mn0.5O3</article-title><trans-title-group xml:lang="ru"><trans-title>Электронная структура ферроманганита висмута BiFe0,5Mn0,5O3</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><string-name xml:lang="ru">Баглов Алексей Викторович</string-name><name-alternatives><name xml:lang="ru"><surname>Баглов</surname><given-names>Алексей Викторович</given-names></name><name xml:lang="en"><surname>Baglov</surname><given-names>Aleksey V.</given-names></name></name-alternatives><string-name xml:lang="en">Aleksey V. Baglov</string-name><xref ref-type="aff" rid="AFF-1"/></contrib><contrib contrib-type="author"><string-name xml:lang="ru">Хорошко Людмила Сергеевна</string-name><name-alternatives><name xml:lang="ru"><surname>Хорошко</surname><given-names>Людмила Сергеевна</given-names></name><name xml:lang="en"><surname>Khoroshko</surname><given-names>Lyudmila S.</given-names></name></name-alternatives><string-name xml:lang="en">Lyudmila S. Khoroshko</string-name><xref ref-type="aff" rid="AFF-1"/></contrib><contrib contrib-type="author"><string-name xml:lang="ru">Силибин Максим Викторович</string-name><name-alternatives><name xml:lang="ru"><surname>Силибин</surname><given-names>Максим Викторович</given-names></name><name xml:lang="en"><surname>Silibin</surname><given-names>Maxim V.</given-names></name></name-alternatives><string-name xml:lang="en">Maxim V. Silibin</string-name><xref ref-type="aff" rid="AFF-2"/></contrib><contrib contrib-type="author"><string-name xml:lang="ru">Карпинский Дмитрий Владимирович</string-name><name-alternatives><name xml:lang="ru"><surname>Карпинский</surname><given-names>Дмитрий Владимирович</given-names></name><name xml:lang="en"><surname>Karpinsky</surname><given-names>Dmitry V.</given-names></name></name-alternatives><string-name xml:lang="en">Dmitry V. Karpinsky</string-name><xref ref-type="aff" rid="AFF-3"/></contrib><aff id="AFF-1" xml:lang="ru">Belarusian State University (Belarus, 220030, Minsk, Nezavisimosti ave., 4); Belarusian State University of Informatics and Radioelectronics (Belarus, 220013, Minsk, Petrus Brovka st., 6)</aff><aff id="AFF-2" xml:lang="ru">National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)</aff><aff id="AFF-3" xml:lang="ru">Scientific and Practical Center of the National Academy of Sciences of Belarus for Materials Science (Belarus, 220072, Minsk, Petrus Brovka st., 19); National Research University of Electronic Technology (Russia, 124498, Moscow, Zelenograd, Shokin sq., 1)</aff></contrib-group><pub-date iso-8601-date="2026-02-11" date-type="pub" publication-format="electronic"><day>11</day><month>02</month><year>2026</year></pub-date><volume>Том. 29 №1</volume><fpage>19</fpage><lpage>29</lpage><self-uri>http://ivuz-e.ru/en/issues/..Том 29 №1/elektronnaya_struktura_ferromanganita_vismuta_bife0_5mn0_5o3/</self-uri><self-uri content-type="pdf">http://ivuz-e.ru#</self-uri><abstract xml:lang="en"><p>Multiferroics based on multiple oxides of transition metals, particularly ferromanganite BiFe0.5Mn0.5O3, are promising functional materials for use in various electrical devices. However, in research literature there are no information about systematic studies of BiFe0.5Mn0.5O3 solid solution. In this work, the model structure of rhombohedral BiFe0.5Mn0.5O3 was studied using first-principles methods. Theoretical estimations of the effective magnetic moments of the iron and manganese ions, the degree of localization of the 3 d states of these ions and the energy gap for different spin configurations of Fe and Mn ions were performed. The nature of the exchange interactions between the transition metal ions was clarified. It has been established that in the antiferromagnetic ordering, the magnetic moments of the iron and manganese ions are very close and have the values of 4.16 and 4.23 µB, respectively, herein the 3 d states of the Fe ions are localized, while the 3 d states of the Mn ions, on the contrary, are delocalized and asymmetric. The presence of a small resulting magnetic moment of 0.012 µB per unit cell is shown. The nonequivalence of the positions of the Fe and Mn ions leading to the formation of an energy gap of 1.28 and 1.48 eV for spin down and spin up channels respectively has been substantiated. The results obtained for the model structure make it possible to describe qualitatively the electronic structure of orthorhombic BiFe0.5Mn0.5O3 using a fourfold reduced number of ions as compared to its real structure, and significantly broaden the scope of information obtained by experimental methods on the structure and physical properties of BiFeO3-BiMnO3 solid solutions.</p></abstract><trans-abstract xml:lang="ru"><p>Мультиферроики на основе сложных оксидов переходных металлов, в частности ферроманганит висмута BiFe0,5Mn0,5O3, являются перспективными функциональными материалами для использования в различных электротехнических устройствах. Однако в научной литературе отсутствует информация о систематическом исследовании твердого раствора BiFe0,5Mn0,5O3. В работе методами из первых принципов исследована модельная структура ромбоэдрического BiFe0,5Mn0,5O3. Проведены теоретические оценки эффективного магнитного момента, степени локализации 3 d -состояний и ширины энергетической щели для разных спиновых конфигураций ионов железа и марганца. Выявлен характер обменных взаимодействий между ионами переходных металлов. Установлено, что в антиферромагнитном упорядочении магнитные моменты ионов железа и марганца близки и составляют 4,16 и 4,23 µБ соответственно, при этом 3 d -состояния ионов железа локализованы, а 3 d -состояния ионов марганца, наоборот, делокализованы и асимметричны. Показано наличие малого результирующего момента, равного 0,012 µБ, на элементарную ячейку, обусловленного неэквивалентностью позиций ионов железа и марганца, приводящей к формированию энергетической щели шириной 1,28 и 1,48 эВ для каналов со спином вниз и вверх соответственно. Полученные для модельной структуры результаты позволяют качественно описать электронную структуру орторомбического BiFe0,5Mn0,5O3 при четырехкратно редуцированном по сравнению с ним числе ионов и в значительной степени расширяют имеющиеся сведения о структуре и физических свойствах твердых растворов BiFeO3-BiMnO3, полученных экспериментальными методами.&lt;br /&gt;
</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ferromanganites</kwd><kwd>multiferroics</kwd><kwd>density functional theory</kwd><kwd>pseudopotential theory</kwd><kwd>states density</kwd><kwd>atomic orbitals population</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ferromanganites</kwd><kwd>multiferroics</kwd><kwd>density functional theory</kwd><kwd>pseudopotential theory</kwd><kwd>states density</kwd><kwd>atomic orbitals population</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке РНФ (проект № 21-19-00386) и ГПНИ «Материаловедение, новые материалы и технологии» на 2021-2025 гг. в рамках НИР 4 задания № 2.17 подпрограммы «Наноструктурные материалы, нанотехнологии, нанотехника («Наноструктура»)».</funding-statement><funding-statement xml:lang="ru">The work has been supported by the Russian Science Foundation (project no. 21-19-00386) and the State Research Institute “Materials Science, New Materials and Technologies” for 2021–2025 within the framework of R&amp;D 4 task no. 2.17 of the subprogram “Nanostructural materials, nanotechnologies, nanotechnology (‘Nanostructure’)”.</funding-statement></funding-group></article-meta>
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