A study of the properties of core/shell/shell Ag/FeCo/Ag nanoparticles
- Авторы: Kamzin A.S.1, Takahashi M.2, Maenosono S.2, Valiullin A.A.3
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Учреждения:
- Ioffe Institute
- School of Materials Science
- Kazan Federal University
- Выпуск: Том 59, № 10 (2017)
- Страницы: 2023-2029
- Раздел: Low-Dimensional Systems
- URL: https://journals.rcsi.science/1063-7834/article/view/201261
- DOI: https://doi.org/10.1134/S1063783417100201
- ID: 201261
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Аннотация
The properties of heterophase core/shell/shell Ag/FeCo/Ag nanoparticles synthesized via a plasma method that are promising for biological applications are studied. As is established, the core/shell/shell Ag/FeCo/Ag nanoparticles exhibit a superparamagnetic state at room temperature that allows one to manage the hyperthermia process. The magnetic characteristics of core/shell/shell Ag/FeCo/Ag nanoparticles are interpreted by assuming partial oxidation of the surface layer of a ferromagnetic FeCo shell and formation of the antiferromagnetic CoxFe1–xО layer on the FeCo surface. The interaction between the surface antiferromagnetic CoxFe1–xО layer and the ferromagnetic FeCо shell causes the emergence of the exchange bias in Ag/FeCo/Ag nanoparticles.
Об авторах
A. Kamzin
Ioffe Institute
Автор, ответственный за переписку.
Email: kamzin@mail.ioffe.ru
Россия, St. Petersburg
M. Takahashi
School of Materials Science
Email: kamzin@mail.ioffe.ru
Япония, Nomi
S. Maenosono
School of Materials Science
Email: kamzin@mail.ioffe.ru
Япония, Nomi
A. Valiullin
Kazan Federal University
Email: kamzin@mail.ioffe.ru
Россия, Kazan
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