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| Home > Publications database > X-ray Absorption Spectroscopy Studies of the Room-Temperature Ferromagnetic Fe-Doped $\mathrm{6H-BaTiO_3}$ |
| Journal Article | PUBDB-2015-00164 |
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2014
Wiley-Blackwell
Oxford [u.a.]
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Please use a persistent id in citations: doi:10.1111/jace.13408
Abstract: We investigated the effect of annealing temperature on magnetic properties of 2% and 10% Fe-doped $BaTiO_{3}$. To understand the possible structural differences between samples treated at different annealing temperatures, and to correlate them with the magnetic properties, several characterization techniques, such as X-ray diffraction and X-ray absorption spectroscopic methods (XANES and EXAFS) were employed. We found that the 2% Fe-doped $BaTiO_{3}$ pseudocubic perovskite is paramagnetic regardless of the heat-treatment conditions. Initially paramagnetic 10% Fe-doped $6H–BaTiO_{3}$, treated at 1250°C, became ferromagnetic after additional annealing at higher temperature. We have crystalographically characterized the cation ordering processes in the $6H–BaTiO_{3}$ that occurred during the high-temperature annealing. The ferromagnetism that is induced in this stage is most probably associated with the observed diffusion processes but it extrinsic character still cannot be fully disregarded.
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; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; Nationallizenz
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