Magnetic Circular Dichroism of Oxide Films: Study of Electronic, Magnetic and Charge States
https://doi.org/10.21122/2220-9506-2024-15-3-240-247
Abstract
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).
Keywords
magneto-optical spectroscopy,
thin oxide films,
nanoparticles,
charge and magnetic subsystems,
electronic states
Supporting agencies: The work was carried out within the state assignment of Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences.
About the Authors
Yu. E. Samoshkina
Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch of Russian Academy of Sciences
Russian Federation
Russian Federation
Address for correspondence:
Samoshkina Yu. –
Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences
Akademgorogok 50, bld. 38, Krasnoyarsk 660036, Russia
e-mail: uliag@iph.krasn.ru
A. V. Chernichenko
Moscow Technical University of Communication and Informatics
Russian Federation
Russian Federation
Aviamotornaya str., 8a, Moscow 111024
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Review
For citations:
Samoshkina Yu.E., Chernichenko A.V. Magnetic Circular Dichroism of Oxide Films: Study of Electronic, Magnetic and Charge States. Devices and Methods of Measurements. 2024;15(3):240-247. (In Russ.) https://doi.org/10.21122/2220-9506-2024-15-3-240-247
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