ISSN:
1434-6036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Different heat treatment procedures were applied during sample preparation, which resulted in different superconducting properties in samples of the same nominal composition, TlCaBa2Cu3O7.5±d . This manifests itself in different critical temperatures: 104 K, 107 K and 93 K. The highestT c belongs to the best-crystallized samples in which the tetragonal Tl2Ca1Ba2Cu2O8±d phase is responsible for the superconductivity. The effect of heat treatments is reflected in the structural and magnetic properties as well.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01314265
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