Abstract:
X-ray absorption spectroscopy has been applied for a characterization of charge states of cobalt ions of nanostructured GdBaCo$_{2}$O$_{5.5}$ complex oxides. The analysis of experimental and theoretical data has allowed establishing a reduction in the oxidation degree from Co$^{3+}$ to Co$^{2+}$ for a part of cobalt ions in GdBaCo$_{2}$O$_{5.5}$ nanoceramics obtained by torsion under pressure.
Citation:
V. V. Mesilov, M. S. Udintseva, S. N. Shamin, S. V. Naumov, S. V. Telegin, B. A. Gizhevskii, V. R. Galakhov, “Determination of charge states of cobalt ions in nanostructured GdBaCo$_{2}$O$_{5.5}$ cobaltites by means of X-ray absorption spectroscopy”, Fizika Tverdogo Tela, 59:4 (2017), 810–815; Phys. Solid State, 59:4 (2017), 829–834