Feature of Nonlinear Electromagnetic Properties and Local Atomic Structure of Metals in Two Systems of Nanocomposites Cox(MgF2)100−x and (CoFeZr)x(MgF2)100−x

Domashevskaya, E.P.; Ivkov, S.A.; Ganshina, E.A.; Guda, L.V.; Vlasenko, V.G.; Sitnikov, A.V.

Авторы: Domashevskaya Evelina Pavlovna, Ivkov Sergey Alexandrovich, Ganshina Elena Alexandrovna, Guda Lyubov Vladimirovna, Vlasenko Valeriy Grigoryevich, Sitnikov Alexander Victorovich
Журнал: Nanomaterials
Том: 15
Номер: 6
Год издания: 2025
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 463
Последняя страница: 486
DOI: 10.3390/nano15060463
Аннотация: Based on modern concepts of the nonlinear percolation mechanisms of electricaland magnetic properties in granular metal–dielectric nanocomposites, the authors presentfor the first time a comparative analysis of their own results of a comprehensive studyof nonlinear electromagnetic properties in two nanocomposite systems: metal–dielectricCox(MgF2)100−x and alloy–dielectric (CoFeZr)x(MgF2)100−x, obtained by ion-beam sputtering of composite targets in a wide range of different compositions. For the first time,the features of the influence of atomic composition and structural-phase transitions onnonlinear magnetoresistive, magnetic, and magneto-optical properties in two systems arepresented in comparison, one of which, Cox(MgF2)100−x, showed soft magnetic properties,and the second, (CoFeZr)x(MgF2)100−x, hard magnetic properties, during the transitionfrom the superparamagnetic to the ferromagnetic state. Moreover, for the first time, theconcentration dependences of the oscillating fine structure of XANES K-absorption edges ofCo atoms in the first system and Co and Fe atoms in the second system are presented, whichundergo changes at the percolation thresholds in each of the two systems and thus confirmthe nonlinear nature of the electromagnetic properties changes in each of the two systemsat the atomic level.
Добавил в систему: Ганьшина Елена Александровна

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Feature of Nonlinear Electromagnetic Properties and Local Atomic Structure of Metals in Two Systems of Nanocomposites Cox(MgF2)100−x and (CoFeZr)x(MgF2)100−xстатья

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