Identification of epsilon-Fe2O3 nano-phase in borate glasses doped with Fe and Gd

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1016/j.jmmm.2015.10.126

Ключевые слова: Magnetic nanoparticles, Epsilon-Fe2O3, Magnetic circular dichroism, Electron magnetic resonance, Dichroism, Glass, High resolution transmission electron microscopy, Magnetic resonance, Magnetic resonance measurement, Magnetism, Nanoparticles, Spectroscopy, Synchrotron radiation, Transmission electron microscopy, Borate glass, Different proportions, Epsilon-Fe<sub>2</sub>O<sub>3</sub>, Glass matrices, Magnetic circular dichroisms, Magnetic nano-particles, Magneto-optical, Nanomagnetics

Аннотация: A new type of magnetic nanoparticles was revealed in borate glasses co-doped with low contents of iron and gadolinium. Structure and magnetic properties of the particles differ essentially from that of the alpha-Fe2O3, gamma-Fe2O3, or Fe3O4 nanoparticles which were detected earlier in similar glass matrices. Transmission electron microscopy including STEM-HAADF and EDX, synchrotron radiation-based XRD, static magnetic measurements, magnetic circular dichroism, and electron magnetic resonance studies allow referring the nanoparticles to the iron oxide phase-e-Fe2O3. Analysis of the data set has shown that it is Gd atoms that govern the process of nanoparticles' nucleation and its incorporation into the particles in different proportions can be used to adjust their magnetic and magneto-optical characteristics. (C) 2015 Elsevier B.V. All rights reserved.

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Издание

Журнал: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Выпуск журнала: Vol. 401

Номера страниц: 880-889

ISSN журнала: 03048853

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

Персоны

Ivanova O.S. (L.V. Kirensky Institute of Physics,Siberian Branch of RAS)
Ivantsov R.D. (L.V. Kirensky Institute of Physics,Siberian Branch of RAS)
Edelman I.S. (L.V. Kirensky Institute of Physics,Siberian Branch of RAS)
Petrakovskaja E.A. (L.V. Kirensky Institute of Physics,Siberian Branch of RAS)
Velikanov D.A. (Siberian Federal University)
Zubavichus Y.V. (NRC Kurchatov Institute)
Zaikovskii V.I. (Novosibirsk State University)
Stepanov S.A. (Vavilov State Optical Institute,All-Russia Research Center)

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