THERMOSTIMULATED EVOLUTION OF THE CRYSTAL AND MAGNETIC STRUCTURE OF YTTRIUM FERRITE GARNET NANOPARTICLES

Author:

Kiseleva T. Yu.1,Rusakov V. S.2,Abbas R.3,Lazareva E. V.4,Tyapkin P. Yu.5,Martinson K. D.6,Komlev A. S.4,Perov N. S.4,Popkov V. I.6

Affiliation:

1. Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia

2. Moscow State University

3. St. Petersburg State Institute of Technology, St. Petersburg, 198013 Russia

4. Lomonosov Moscow State University, Moscow, Russia

5. Institute of Solid-State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630128 Russia

6. Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021 Russia

Abstract

Iron-containing oxides form one of the most important classes of functional materials, which find a wide variety of applications. A promising approach is their use in biomedical technologies as components of systems for visualization, drug delivery, magnetic hyperthermia, etc. Nanocrystalline particles of Y3Fe5O12 garnet, obtained by glycine-nitrate combustion with subsequent thermal treatment, have been experimentally investigated. The results of studying the evolution of the crystal and magnetic structure of Y3Fe5O12 nanoparticles in dependence of the synthesis temperature are presented. A complex analysis using X-ray diffractometry, scanning electron microscopy, and Mössbauer spectroscopy has been performed. A relationship of the size and structural quality of Y3Fe5O12 nanoparticles with the observed magnetic characteristics is evealed.

Publisher

The Russian Academy of Sciences

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