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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">mireabulletin</journal-id><journal-title-group><journal-title xml:lang="ru">Russian Technological Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Technological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-3210</issn><issn pub-type="epub">2500-316X</issn><publisher><publisher-name>RTU MIREA</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2500-316X-2020-8-5-68-77</article-id><article-id custom-type="elpub" pub-id-type="custom">mireabulletin-250</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>МИКРО- И НАНОЭЛЕКТРОНИКА. ФИЗИКА КОНДЕНСИРОВАННОГО СОСТОЯНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICRO- AND NANOELECTRONICS. CONDENSED MATTER PHYSICS</subject></subj-group></article-categories><title-group><article-title>Методы эффективной среды как оптимальные методы моделирования физических свойств наноструктур</article-title><trans-title-group xml:lang="en"><trans-title>Methods of effective media as optimal methods for modeling the physical properties of nanostructures</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>Юрасов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurasov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрасов Алексей Николаевич, доктор физико-математических наук, доцент, профессор, заместитель заведующего кафедрой наноэлектроники, заместитель директора Физико-технологического института. Scopus Author ID: 6602974416119454, Москва, пр-т Вернадского, д. 78</p></bio><bio xml:lang="en"><p>Alexey N. Yurasov, Dr. Sci. (Physics and Mathematics), Assistant Professor, Deputy Head of the Department of Nanoelectronics, Deputy Director of the Physico-Technological Institute. Scopus Author ID: 660297441678, Vernadskogo pr., Moscow 119454</p></bio><email xlink:type="simple">alexey_yurasov@mail.ru</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>Яшин</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Yashin</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яшин Максим Михайлович, старший преподаватель кафедры наноэлектроники Физико-технологического института ФГБОУ ВО «МИРЭА – Российский технологический университет» (119454, Москва, пр-т Вернадского, д. 78), ассистент кафедры «Физика» МГТУ им Н.Э. Баумана (105005, Москва, ул. 2-я Бауманская, д. 5). Scopus Author ID: 57191628251</p></bio><bio xml:lang="en"><p>Maxim M. Yashin, Senior teacher Department of Nanoelectronics, MIREA – Russian Technological University (78, Vernadskogo pr., Moscow 119454); Assistant Lecturer, Department of Physics, Bauman Moscow State Technical University (5, str. 1, 2-ya Baumanskaya ul., Moscow 105005). Scopus Author ID: 57191628251</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МИРЭА – Российский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>МИРЭА – Российский технологический университет; Московский государственный технический университет им. Н.Э. Баумана</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University; Bauman Moscow State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>20</day><month>10</month><year>2020</year></pub-date><volume>8</volume><issue>5</issue><fpage>68</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Юрасов А.Н., Яшин М.М., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Юрасов А.Н., Яшин М.М.</copyright-holder><copyright-holder xml:lang="en">Yurasov A.N., Yashin M.M.</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://www.rtj-mirea.ru/jour/article/view/250">https://www.rtj-mirea.ru/jour/article/view/250</self-uri><abstract><p>В работе рассматриваются различные методы эффективной среды в качестве инструмента для исследования как оптических, так и магнитооптических свойств разных наноструктур, в первую очередь магнитных. В явном виде были получены формулы для нахождения диагональных и недиагональных компонент тензора диэлектрической проницаемости для всех основных приближений эффективной среды. Данные формулы справедливы как для нанокомпозитов, так и для гранулированных сплавов. Обсуждается возможность прогнозирования различных оптических и магнитооптических свойств подобных структур на примере экваториального эффекта Керра, как перспективного бесконтактного метода исследования наноструктур для ферромагнитного нанокомпозита (CoFeZr)x(MgF2)100-x. Обсуждается возможное применение полученных формул. Различные методы эффективной среды открывают перспективы изучать наноструктуры в широкой области значений концентрации металлической (магнитной) компоненты X. В работе отмечается и обсуждается вклад различных механизмов, влияющих на физические свойства подобных структур, особенно в ИК области спектра, где наиболее ярко проявляется квазиклассический размерный эффект. Одним из таких вкладов может служить учёт форм-фактора частиц нанокомпозита и средний размер частиц. В рамках модели Друде-Лоренца анализируется вклад квазиклассического размерного эффекта в диагональные и недиагональные компоненты тензора диэлектрической проницаемости структуры. Решаемая в этой работе задача актуальна, так как в магнитных наноструктурах наблюдаются интересные и важные эффекты, такие как: эффект Керра, аномальное поглощение, гигантское магнетосопротивление, туннельное магнетосопротивление и многие другие. Эти эффекты играют важную роль в устройствах современной электроники, что делает данную работу особенно актуальной.</p></abstract><trans-abstract xml:lang="en"><p>This paper considers various methods of effective media as a tool for studying both optical and magneto-optical properties of various nanostructures, primarily magnetic nanostructures. Formulas for finding diagonal and non-diagonal components of the permittivity tensor for all basic approximations of the effective medium were obtained explicitly. These formulas are valid for both nanocomposites and granular alloys. The possibility of predicting various optical and magneto-optical properties of such structures is discussed using the example of the transverse Kerr effect as a promising non-contact method for studying nanostructures for a ferromagnetic nanocomposite (CoFeZr)x(MgF2)100-x. A possible application of the obtained formulas is discussed. Various methods of effective media make it possible to study nanostructures in a wide range of values of the concentration of the metal (magnetic) component Х. The paper notes and discusses the contribution of various mechanisms that affect the physical properties of such structures, especially in the IR region of the spectrum, where the quasi-classical dimensional effect is most pronounced. The form factor of nanocomposite particles and the average particle size are such contributions that can be taken into account. The contribution of the quasi-classical dimensional effect to the diagonal and non-diagonal components of the structure's permittivity tensor is analyzed within the framework of the Drude-Lorentz model. The problem being solved in this work is relevant, since interesting and important effects are observed in magnetic nanostructures, such as the Kerr effect, anomalous absorption, giant magnetoresistance, tunnel magnetoresistance, and many others. These effects play an important role in modern electronic devices, which makes this work particularly relevant.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нанокомпозиты</kwd><kwd>гранулированные сплавы</kwd><kwd>методы эффективной среды</kwd><kwd>квазиклассическое приближение</kwd><kwd>экваториальный эффект Керра</kwd><kwd>тензор диэлектрической проницаемости</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nanocomposites</kwd><kwd>granular alloys</kwd><kwd>methods of efficient processing</kwd><kwd>quasi-classical approximation</kwd><kwd>transverse Kerr effect</kwd><kwd>tensor of dielectric permittivity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта «Университетский» по теме «Гетероструктура».</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">Yashin M.M., Yurasov A.N., Ganshina E.A., Garshin V. 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