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This article is cited in 2 scientific papers (total in 2 papers)
CONDENSED MATTER
Spin states of cobalt ions in the bulk and on the surface of LaCoO$_3$ probed by x-ray absorption, emission, and photoelectron spectra
V. R. Galakhova, M. S. Udintsevaa, D. A. Smirnovb, A. A. Makarovac, K. Kuepperd a Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620108 Russia
b Institute of Solid State and Material Physics, Dresden University of Technology, Dresden, 01062 Germany
c Physikalische Chemie Institut für Chemie und Biochemie Freie Universität Berlin, Berlin, 14195 Germany
d Department of Physics, University of Osnabrück, Osnabrück, 49076 Germany
Abstract:
We present X-ray photoelectron, Co $L_{2,3}$ and O $K \mathrm{X}$-ray absorption, as well as Co $K\beta_{1,3}\mathrm{X}$-ray emission spectroscopy results of studies of the spin states of trivalent cobalt ions in single-crystal cobaltite LaCoO$_3$. We show that at room temperature, in the bulk of a LaCoO$_3$ single crystal, Co$^{3+}$ ions are in the low-spin state, while high-spin Co$^{2+}$, high-spin Co$^{3+}$, low-spin Co$^{3+}$, and probably also intermediate-spin Co$^{3+}$ ions are located on the surface.
Received: 24.05.2023 Revised: 25.06.2023 Accepted: 26.06.2023
Citation:
V. R. Galakhov, M. S. Udintseva, D. A. Smirnov, A. A. Makarova, K. Kuepper, “Spin states of cobalt ions in the bulk and on the surface of LaCoO$_3$ probed by x-ray absorption, emission, and photoelectron spectra”, Pis'ma v Zh. Èksper. Teoret. Fiz., 118:3 (2023), 185–190; JETP Letters, 118:3 (2023), 189–194
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https://www.mathnet.ru/eng/jetpl7005 https://www.mathnet.ru/eng/jetpl/v118/i3/p185
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Abstract page: | 35 | References: | 9 | First page: | 3 |
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