Microstructure and superconductivity in a new superconductor series: (Tl,Pb)1Sr2Can - 1CunO2n + 3 - delta
Abstract
The synthesis procedure and superconducting properties of the first two members of the new series of superconductors of a general formula: (Tl, Pb)1 Sr2 Can-1 Cun O2n+3-δ , are reported. The detailed atomic level microstructure of the compounds have been determined and computer simulated with structural models. Tc increases with n, the number of Cu-O2 layers per unit cell, as in the single Tl-layer Tl-Ba-Ca-Cu-O compounds, but the new materials have higher Tc 's for the same value of n.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- June 1989
- DOI:
- 10.1063/1.343154
- Bibcode:
- 1989JAP....65.5207B
- Keywords:
-
- Copper Oxides;
- High Temperature Superconductors;
- Lead Compounds;
- Microstructure;
- Mixed Oxides;
- Thallium Compounds;
- Atomic Energy Levels;
- Calcium Compounds;
- Crystal Structure;
- Strontium Compounds;
- X Ray Diffraction;
- Solid-State Physics