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Synthesis, Characterization, and Optimization of Magnetoelectric BaTiO3–Iron Oxide Core–Shell Nanoparticles

by Mahmud Reaz 1,2, Ariful Haque 1,3,* and Kartik Ghosh 1
1
Department of Physics, Astronomy and Materials Science, Missouri State University, Springfield, MO 65897, USA
2
Interdisciplinary Materials Science, Vanderbilt University, Nashville, TN 37235, USA
3
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, USA
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(3), 563; https://doi.org/10.3390/nano10030563
Received: 27 January 2020 / Revised: 12 March 2020 / Accepted: 17 March 2020 / Published: 20 March 2020
Improvement of magnetic, electronic, optical, and catalytic properties in cutting-edge technologies including drug delivery, energy storage, magnetic transistor, and spintronics requires novel nanomaterials. This article discusses the unique, clean, and homogeneous physiochemical synthesis of BaTiO3/iron oxide core–shell nanoparticles with interfaces between ferroelectric and ferromagnetic materials. High-resolution transmission electron microscopy displayed the distinguished disparity between the core and shell of the synthesized nanoparticles. Elemental mapping and line scan confirmed the formation of the core–shell structure. Energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy detected the surface iron oxide phase as maghemite. Rietveld analysis of the X-ray diffraction data labeled the crystallinity and phase purity. This study provides a promising platform for the desirable property development of the futuristic multifunctional nanodevices. View Full-Text
Keywords: nanoparticles; oxide-nanomaterials synthesis; core–shell; perovskite oxide; superparamagnetism; magnetic iron-oxides; energy-dispersive X-ray spectroscopy nanoparticles; oxide-nanomaterials synthesis; core–shell; perovskite oxide; superparamagnetism; magnetic iron-oxides; energy-dispersive X-ray spectroscopy
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Reaz, M.; Haque, A.; Ghosh, K. Synthesis, Characterization, and Optimization of Magnetoelectric BaTiO3–Iron Oxide Core–Shell Nanoparticles. Nanomaterials 2020, 10, 563.

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