caa a22 4500 46792791X CHVBK 20180406152935.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1134/S0020168506110124 doi (NATIONALLICENCE)springer-10.1134/S0020168506110124 State of oxygen in the structure of YBa2Cu3O6+δ: Reversible changes during annealing and their influence on T c [Elektronische Daten] [A. Fetisov, S. Estemirova, V. Fetisov] The valence state of oxygen in YBa2Cu3O6+δ has been studied by x-ray photoelectron spectroscopy. The results indicate that, in the temperature range 298-510 K, the state of some of the cations in this compound changes significantly. These changes are interpreted in terms of ordered and disordered states in the anion sublattice of YBa2Cu3O6+δ, the boundary between which lies within the temperature range studied. Oxygen ordering is assumed to play a central role in determining the complex, stepwise variation of the superconducting transition temperature with composition. Pleiades Publishing, Inc., 2006 Fetisov A. Institute of Metallurgy, Ural Division, Russian Academy of Sciences, ul. Amundsena 101, 620016, Yekaterinburg, Russia aut Estemirova S. Institute of Metallurgy, Ural Division, Russian Academy of Sciences, ul. Amundsena 101, 620016, Yekaterinburg, Russia aut Fetisov V. Ural State University of Economics, ul. Vos'mogo Marta 62, 620219, Yekaterinburg, Russia aut Inorganic Materials Nauka/Interperiodica 42/11(2006-11-01), 1243-1250 0020-1685 42:11<1243 2006 42 10789 https://doi.org/10.1134/S0020168506110124 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506110124 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fetisov A. Institute of Metallurgy, Ural Division, Russian Academy of Sciences, ul. Amundsena 101, 620016, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Estemirova S. Institute of Metallurgy, Ural Division, Russian Academy of Sciences, ul. Amundsena 101, 620016, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Fetisov V. Ural State University of Economics, ul. Vos'mogo Marta 62, 620219, Yekaterinburg, Russia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/11(2006-11-01), 1243-1250 0020-1685 42:11<1243 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer