Thermogravimetric method for determination of oxygen stoichiometry in superconducting 1:2:3 and metal-substituted 1:2:3 compounds
β Scribed by R Venkataramani; S P Garg; S Mazumder
- Book ID
- 112871873
- Publisher
- Springer-Verlag
- Year
- 1991
- Tongue
- English
- Weight
- 184 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0250-4707
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Structural studies of the oxidation process of YBa2Cu306+x and Pb2Sr2Y 1-xCaxOs+8 reveal that oxygen uptake does not necessarily lead to better superconducting properties. In the former compound oxygen incorporation results in a higher concentration of positive charges (electron holes) which are tra
The dependence of crystal structure, oxygen content and T c of ceramic GdBa 2\_ xSr~Cu307 ,s (0.0 < x \_< 1.6) samples on three different sets of annealing conditions was investigated. For samples annealed in oxygen at 900Β°C, a decrease of T c and orthorhombicity was observed with increasing Sr cont