Superconductivity in the Bi-Sr-Ca-Cu oxide compositional diagram
Abstract
Careful study of the distribution of room temperature resistance in the wuaternary compositional diagram of the Bi-Sr-Ca-Cu oxides has demonstrated a wide range of materials which exhibit superconducting transitions in the temperature range 60-110 k. Energy dispersive analysis has shown that these are multiphase materials with a number of common phases which appear to be responsible for the observed superconductivity. Among these is the 2212 composition which has been reported previously and two new phases with stoichiometries 2213 and 2215.
- Publication:
-
Journal of Crystal Growth
- Pub Date:
- August 1988
- DOI:
- Bibcode:
- 1988JCrGr..91..450V
- Keywords:
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- Copper Oxides;
- High Temperature Superconductors;
- Mixed Oxides;
- Phase Diagrams;
- Bismuth Compounds;
- Calcium Compounds;
- Chemical Composition;
- Critical Temperature;
- Phase Transformations;
- Strontium Compounds;
- Solid-State Physics