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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">mateltech</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Материалы электронной техники</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-3577</issn><issn pub-type="epub">2413-6387</issn><publisher><publisher-name>MISIS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1609-3577-2017-4-272-283</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-410</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>Эпитаксиальные слои и многослойные композиции</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EPITAXIAL LAYERS AND MULTILAYERED COMPOSITIONS</subject></subj-group></article-categories><title-group><article-title>Дислокационная структура эпитаксиальных слоев гетероструктур AlGaN/GaN/α-Al2O3 при легировании слоя GaN углеродом и железом</article-title><trans-title-group xml:lang="en"><trans-title>Dislocation structure of the AlGaN/GaN/α-Al2O3 heterostructures epitaxial layers at doping GaN with С and Fe</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>Русак</surname><given-names>Т. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Rusak</surname><given-names>T. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Енишерлова</surname><given-names>К. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Enisherlova</surname><given-names>K. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187 </p></bio><email xlink:type="simple">Enisherlova@pulsarnpp.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>Лютцау</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lutzau</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сарайкин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Saraykin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корнеев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Korneev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АO «НПП»Пульсар»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>J&amp;C “S&amp;PE “Pulsar”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>27</day><month>01</month><year>2021</year></pub-date><volume>20</volume><issue>4</issue><fpage>272</fpage><lpage>283</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Русак Т.Ф., Енишерлова К.Л., Лютцау А.В., Сарайкин В.В., Корнеев В.И., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Русак Т.Ф., Енишерлова К.Л., Лютцау А.В., Сарайкин В.В., Корнеев В.И.</copyright-holder><copyright-holder xml:lang="en">Rusak T.F., Enisherlova K.L., Lutzau A.V., Saraykin V.V., Korneev V.I.</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://met.misis.ru/jour/article/view/410">https://met.misis.ru/jour/article/view/410</self-uri><abstract><p>В работе исследовано влияние процесса легирования железом и углеродом эпитаксиального слоя GaN на сапфире на особенности роста эпитаксиальных пленок и их дислокационную структуру. При исследовании использовались методы: масс-спектроскопия вторичных ионов, селективное химическое травление на сферических шлифах, а также однокристальная дифрактометрия. Показано, что легирование в процессе роста эпитаксиального слоя GaN углеродом может приводить к значительному уменьшения плотности дислокаций в эпитаксиальных слоях. Показано, что для образцов, легированных железом, характерно уменьшение количества коротких дислокаций, расположенных в объеме структуры, но образуется большое количество протяженных дислокаций, способствующих диффузии железа в рабочие области гетероструктур, что может отрицательно влиять на электрические параметры структур. В ходе работы предложена методика определения плотности дислокаций в эпитаксиальных пленках с использования двух схем селективного травления сферических шлифов, которая позволяет определять распределение плотности дислокаций по глубине эпитаксиальных пленок.</p></abstract><trans-abstract xml:lang="en"><p>The aim of this work was to study the influence of the iron and carbon doping of the epitaxial GaN layer on sapphire on the growth features of epitaxial films and their dislocation structure. Investigation methods used were: mass spectroscopy of secondary ions, selective chemical etching on spherical sections, and also single-crystal diffractometry.It is shown that doping during growth of an epitaxial GaN layer with carbon can lead to a significant decrease in the dislocation density in epitaxial layers.It has been shown that for samples doped with iron, a decrease in the number of short dislocations located in the bulk of the structure is characteristic, but a large number of extended dislocations are generated contributing to the diffusion of iron into the working regions of heterostructures, which can adverselyinfluence on the electrical parameters of the structures. In the course of the work, a technique for determining the density of dislocations in epitaxial films was proposed using two schemes of selective etching of spherical thin sections, which makes it possible to determine the dislocation density distribution over the depth of epitaxial films.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нитридная гетероструктура</kwd><kwd>буферный слой GaN</kwd><kwd>дислокация</kwd><kwd>масс-спектроскопия вторичных ионов</kwd><kwd>сферический шлиф</kwd><kwd>селективное химическое травление</kwd><kwd>однокристальная дифрактометрия</kwd><kwd>блочность</kwd><kwd>кристаллографическая плоскость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nitride heterostructure</kwd><kwd>GaN buffer layer</kwd><kwd>dislocation</kwd><kwd>secondary ion mass spectroscopy</kwd><kwd>spherical section</kwd><kwd>selective chemical etching</kwd><kwd>single-crystal diffractometry</kwd><kwd>mosaic structure</kwd><kwd>crystallographic plane</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">Liliental-Weber Z., dos Reis R., Weyher J. 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