Appearance of itinerant electrons detected by IR spectroscopy and its correlation with surface magnetism in Co-doped TiO2 nanopowdersE.V. Mostovshchikova, A.Ye. Yermakov, M.A. Uimin and A.S. MininEPJ Web Conf., 185 (2018) 03006DOI: https://doi.org/10.1051/epjconf/201818503006