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2019•Bulletin of the Russian Academy of Sciences PhysicsRequires access

Magnetic Properties of Ultrafine ε-Fe2O3 Nanoparticles in a Silicon Xerogel Matrix

Yu. V. Knyazev, Stanislav S. Yakushkin, Dmitry A. Balaev, A. A. Dubrovsky, Sergey V. Semenov, Oleg A. Bayukov, V. L. Kirillov, Oleg N. Martyanov

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Abstract

Abstract A new metamaterial is obtained on the basis of ε-Fe2O3 nanoparticles immobilized in a xerogel matrix. Samples are synthesized by impregnating SiO2 hydrogel with iron (II) salts with subsequent drying and calcination. The structure and magnetic properties of the composites are probed using transmission electron microscopy, X-ray diffraction, Mössbauer spectroscopy, and static magnetic measurements.

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What this paper is about

Abstract A new metamaterial is obtained on the basis of ε-Fe2O3 nanoparticles immobilized in a xerogel matrix. Samples are synthesized by impregnating SiO2 hydrogel with iron (II) salts with subsequent drying and calcination. The structure and magnetic properties of the composites are probed using transmission electron microscopy, X-ray diffraction, Mössbauer spectroscopy, and static magnetic measurements.

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Available abstract

Abstract A new metamaterial is obtained on the basis of ε-Fe2O3 nanoparticles immobilized in a xerogel matrix. Samples are synthesized by impregnating SiO2 hydrogel with iron (II) salts with subsequent drying and calcination. The structure and magnetic properties of the composites are probed using transmission electron microscopy, X-ray diffraction, Mössbauer spectroscopy, and static magnetic measurements.

Key concepts: Calcination, Transmission electron microscopy, Materials science, Nanoparticle, Matrix (chemical analysis), Diffraction, Chemical engineering, Magnetic nanoparticles

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