This article is cited in 1 paper

Low dimensional systems

A study of the properties of core/shell/shell Ag/FeCo/Ag nanoparticles

A. S. Kamzin^a, M. Takahashi^b, Sh. Maenosono^b, A. A. Valiullin<sup>c

a</sup> Ioffe Institute, St. Petersburg
^b School of Materials Science, Japan Advanced Institute of Science and Technology, Nomi, Japan
^c Kazan (Volga Region) Federal University

Abstract: 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 Co$_{x}$Fe$_{1-x}$О layer on the FeCo surface. The interaction between the surface antiferromagnetic Co$_{x}$Fe$_{1-x}$О layer and the ferromagnetic FeCо shell causes the emergence of the exchange bias in Ag/FeCo/Ag nanoparticles.

Received: 30.03.2017

DOI: 10.21883/FTT.2017.10.44971.105

 English version: Physics of the Solid State, 2017, 59:10, 2023–2029

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