| Issue |
EPJ Web Conf.
Volume 185, 2018
Moscow International Symposium on Magnetism (MISM 2017)
|
|
|---|---|---|
| Article Number | 03006 | |
| Number of page(s) | 3 | |
| Section | Magnetic Nanostructures and Low Dimensional Magnetism | |
| DOI | https://doi.org/10.1051/epjconf/201818503006 | |
| Published online | 04 July 2018 | |
https://doi.org/10.1051/epjconf/201818503006
Appearance of itinerant electrons detected by IR spectroscopy and its correlation with surface magnetism in Co-doped TiO2 nanopowders
1
M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, Russian Federation
2
Ural Federal University, 620083, Ekaterinburg, Russian Federation
* Corresponding author : mostovsikova@imp.uran.ru
Published online: 4 July 2018
IR absorption and magnetic data for the titanium dioxide nanopowders are studied. Additional absorption in IR range is revealed in nanocrystalline TiO2 and Co-doped TiO2 after reducing annealing and explained by appearance of the oxygen vacancies and delocalised charge carriers. Increasing of the absorption in IR range after annealing of Co-doped TiO2 in vacuum (or decreasing of this contribution after annealing in air) correlates with arising (or vanishing) of ferromagnetic contribution.
© The Authors, published by EDP Sciences, 2018
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