Effect of Ru3+ ions on the formation, structural, magnetic and optical properties of hematite (α-Fe2O3) nanorods

N. Popov,M. Boskovic,M. Perovic,K. Zadro,V. Gilja,L. Kratofil Krehula,M. Robic,M. Marcius,M. Ristic,S. Music,D. Stankovic,S. Krehula

Journal of Magnetism and Magnetic Materials（2021）

Cited 8|Views14

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Abstract

•Ru-doped hematite nanorods were prepared by precipitation and calcination.•Ru-for-Fe substitution (up to 2 mol%) induced a gradual elongation of nanorods.•Temperature of the Morin transition gradually rose with increased Ru doping.•Optical band gap of hematite nanorods narrowed with increased Ru doping.•Cylinder-shaped hematite particles were formed in the presence of 4 or 5 mol% Ru.

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Key words

Hematite,Ru dopant,Nanorods,Nanocylinders,Mössbauer spectroscopy,Morin transition

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