Результаты исследований: Вклад в журнал › Статья › Рецензирование
Результаты исследований: Вклад в журнал › Статья › Рецензирование
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TY - JOUR
T1 - Magnetic circular dichroism of Co nanoparticles localized in matrices of various types
AU - Samoshkina, Yulia
AU - Edelman, Irina
AU - Chou, Hsiung
AU - Petrov, Dmitriy A.
AU - Zharkov, Sergey
AU - Neznakhin, Dmitry
AU - Stepanova, Elena
AU - Stepanov, Andrey
N1 - This work was supported by the Russian Science Foundation [grant number 21-72-00061 ]. Electron microscopic studies were carried out in the laboratory of electron microscopy of the Joint Scientific Center of the Siberian Federal University.
PY - 2023/5/1
Y1 - 2023/5/1
N2 - Magnetic and magneto-optical properties of cobalt nanoparticles (Co-NPs) dispersed in a transparent dielectric SiO2 and semiconductor ZnO matrices have been investigated. Field and temperature dependences of the samples magnetization showed the typical behavior of an ensemble of superparamagnetic particles with a blocking temperature near and below room temperature. The spectroscopy of magnetic circular dichroism (MCD) in the visible and near-infrared light ranges has revealed a significant difference between the behavior of the Co-NPs and a solid Co film. It has been found that the MCD spectrum shape for the Co-NPs does not depend on the matrix type. The room temperature magneto-optical activity of the Co-NPs in the different matrices has been estimated as an indicator for practical applications.
AB - Magnetic and magneto-optical properties of cobalt nanoparticles (Co-NPs) dispersed in a transparent dielectric SiO2 and semiconductor ZnO matrices have been investigated. Field and temperature dependences of the samples magnetization showed the typical behavior of an ensemble of superparamagnetic particles with a blocking temperature near and below room temperature. The spectroscopy of magnetic circular dichroism (MCD) in the visible and near-infrared light ranges has revealed a significant difference between the behavior of the Co-NPs and a solid Co film. It has been found that the MCD spectrum shape for the Co-NPs does not depend on the matrix type. The room temperature magneto-optical activity of the Co-NPs in the different matrices has been estimated as an indicator for practical applications.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85151472818
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000967732500001
U2 - 10.1016/j.mtla.2023.101759
DO - 10.1016/j.mtla.2023.101759
M3 - Article
VL - 28
JO - Materialia
JF - Materialia
SN - 2589-1529
M1 - 101759
ER -
ID: 37149704