Preparation dependent superconductivity in TlCaBa2Cu3O7.5(sub+-)d above 100K
Abstract
Different heat treatment procedures were applied during the sample preparation process, which result in different superconducting properties in the samples of the same nominal composition of TlCaBa sub 2 Cu sub 3 O sub 7.5 plus or minus d. It manifests itself in the different critical temperatures having values of 104 K, 107 K and 93 K. The effect of heat treatments is reflected in the structural and magnetic properties as well.
- Publication:
-
Unknown
- Pub Date:
- August 1988
- Bibcode:
- 1988pdst.rept.....P
- Keywords:
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- Heat Treatment;
- Superconductivity;
- Superconductors;
- Transition Temperature;
- Barium Oxides;
- Calcium Oxides;
- Magnetic Properties;
- Samples;
- Thallium Compounds;
- Solid-State Physics