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Influence of oxygen partial pressure on properties 12zsolid solutions
Authors:T.N. Kol'tsova  G.D. Nipan  N.F. Vedernikov  Yu.F. Orekhov  E.A. Tishchenko
Affiliation:a{ ormalsizeit N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow, 117907, Russia;bP. L. Kapitsa Institute for Physical Problems, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 117973, Russia
Abstract:
The annealing of YBa2CuzO7−δcompounds (2.5 ≤ z ≤ 3.5) in oxygen flow (at temperature of synthesis and following fast cooling) leads to: (i) a reduction in homogeneity range; (ii) decreasing of copper content influence on superconducting properties of samples; (iii) considerable decreasing of ΔTcvalue as a result of cation and anion vacancies order.
Keywords:
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