Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 331, Issue -, Pages 129-132Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2012.11.028
Keywords
Nano-Ilmenite; Structural; Optical; Magnetic properties
Funding
- BK21 Frontier Physics Research Division, Department of Physics and Astronomy, Seoul National University, Seoul, South Korea
- EU-FP program of NRF (National Research Foundation), South Korea
- FCT (Fundacao para a Ciencia e Tecnologia)
- KRF [2012-0004082]
- CFUM
- European Commission [269279]
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In general, ilmenite FeTiO3 is synthesized by solid-state reaction at very high pressure and high temperature. Synthesis of FeTiO3 is not an easy task as the Fe2+ ions are not stable. Therefore, it is really challenging to prepare this material. In this work nano-ilmenite FeTiO3 was synthesized by the sol-gel method. Structural, optical and magnetic characterizations were performed. The bandgap of FeTiO3 was determined to be 2.8 eV showing FeTiO3 as suitable wide bandgap material for technological applications. The FeTiO3 nanoparticles exhibit weak ferromagnetic properties at and below room temperature. The Neel temperature was observed to be around 52 K. (C) 2012 Elsevier B.V. All rights reserved.
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