Modification of several physicochemical properties of a high-temperature superconducting yttrium ceramic upon doping with gold |
| |
Authors: | T V Krachino I N Zimkin M A Mittsev Yu P Stepanov |
| |
Institution: | (1) A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia |
| |
Abstract: | The influence of additions of gold (5 and 10 at. %) on the lattice parameters, the superconducting transition temperature,
and the diamagnetic susceptibility of the high-temperature superconducting ceramic YBa2Cu3O7−δ
is investigated. The influence of gold on the kinetics of the release of weakly bound oxygen during heating of the ceramic
in a vacuum is also studied. It is shown that doping the ceramic with gold causes uniaxial expansion of the lattice of the
material, a significant decrease in the diamagnetic susceptibility, and nonmonotonic variation of the kinetic parameters of
the oxygen release, while the superconducting transition temperature remains nearly unchanged.
Zh. Tekh. Fiz. 67, 31–34 (February 1997) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|