pimiПриборы и методы измеренийDevices and Methods of Measurements2220-95062414-0473BNTU10.21122/2220-9506-2024-15-3-240-247pimi-892Research ArticleМетоды измерений, контроля, диагностикиMethods of measurements, monitoring, diagnosticsМагнитный круговой дихроизм оксидных плёнок: изучение электронных, магнитных и зарядовых состоянийMagnetic Circular Dichroism of Oxide Films: Study of Electronic, Magnetic and Charge StatesСамошкинаЮ. Э.SamoshkinaYu. E.

Адрес для переписки:Самошкина Ю.Э. –Институт физики имени Л.В. Киренского Сибирского отделения РАН,Академгородок 50, стр. 38, г. Красноярск 660036, Россия e-mail: uliag@iph.krasn.ru

Address for correspondence:Samoshkina Yu. –Kirensky Institute of Physics, Siberian Branch of Russian Academy of SciencesAkademgorogok 50, bld. 38, Krasnoyarsk 660036, Russia e-mail: uliag@iph.krasn.ru

uliag@iph.krasn.ruЧерниченкоА. В.ChernichenkoA. V.

ул. Авиамоторная, 8а, г. Москва 111024

Aviamotornaya str., 8a, Moscow 111024

Институт физики имени Л.В. Киренского, Федеральный исследовательский центр “Красноярский научный центр Сибирского отделения Российской академии наукРоссияKirensky Institute of Physics, Federal Research Center KSC Siberian Branch of Russian Academy of SciencesRussian FederationМосковский технический университет связи и информатикиРоссияMoscow Technical University of Communication and InformaticsRussian Federation202406112024153240247Copyright © Самошкина Ю.Э., Черниченко А.В., 20242024Самошкина Ю.Э., Черниченко А.В.Samoshkina Y.E., Chernichenko A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://pimi.bntu.by/jour/article/view/892

Полупроводниковые материалы на основе оксидов ZnO и RE3+MnO3 рассматриваются как потенциальные кандидаты для спинтроники. В работе представлены методика и результаты исследования эффекта магнитного кругового дихроизма для плёночных структур Zn1-xCoxO, Zn1-x-yCoxAlyO и RE1-x 3+Ax 2+MnO3 в диапазоне видимого излучения. Показано, что поведение магнитного кругового дихроизма плёнок манганита отражает не только магнитную, но и зарядовую составляющую материала. Это указывает на возможность исследования магнитных и транспортных характеристик плёнок с помощью магнитного кругового дихроизма спектроскопии. Поскольку магнитный круговой дихроизм также напрямую зондирует основные и возбуждённые электронные состояния плёнки, были получены данные, обновляющие расчётные параметры для описания зонной структуры манганитов. В случае плёнок Zn1-xCoxO и Zn1-x-yCoxAlyO установлено, что спектральная форма магнитного кругового дихроизма выступает в качестве инструмента для обнаружения наночастиц Co в матрице твёрдого раствора ZnO:Co и ZnO:(Co+Al).

Semiconductor materials based on ZnO and RE3+MnO3 oxides are considered as potential candidates for spintronics. This article presents the methodology and results of studying the effect of magnetic circular dichroism for Zn1-xCoxO, Zn1-x-yCoxAlyO and RE1-x 3+Ax 2+MnO3 film structures in the visible radiation range. It has been shown that the magnetic circular dichroism behavior of the manganite films reflects not only the magnetic, but also the charge component of the material. This indicates the possibility of studying the magnetic and transport characteristics of the films using the magnetic circular dichroism spectroscopy. Since the magnetic circular dichroism effect also directly probes the ground and excited electronic states of the film, it has been obtained data that update calculated parameters for describing the manganites band structure. In the case of the Zn1-xCoxO and Zn1-x-yCoxAlyO films, the magnetic circular dichroism spectroscopy acts as a tool for detecting Co nanoparticles in the solid solution matrix of ZnO:Co and ZnO:(Co+Al).

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The authors declare that there are no conflicts of interest present.