A new high-temperature superconductor - Bi2Sr(3-x)Ca(x)Cu2O(8 + y)
Abstract
Bi2Sr(3-x)Ca(x)Cu2O(8 + y) (x in the range of 0.4 to 0.9) is a new superconductor displaying onset behavior near 120 K. Single crystal X-ray diffraction data were employed to determine a pseudotetragonal structure based on an A-centered orthorhombic subcell with a = 5.399 A, b = 5.414 A, and c = 30.904 A. In the samples considered, flux exclusion begins at about 116 K and is very strong by 95 K. Electrical measurements on a single crystal of Bi2Sr(3-x)Ca(x)Cu2O(8 + y) indicate a resistivity drop at about 116 K and apparent zero resistivity at 91 K.
- Publication:
-
Science
- Pub Date:
- February 1988
- DOI:
- 10.1126/science.239.4843.1015
- Bibcode:
- 1988Sci...239.1015S
- Keywords:
-
- Bismuth Compounds;
- Calcium Compounds;
- Copper Oxides;
- High Temperature Superconductors;
- Single Crystals;
- Strontium Compounds;
- Crystal Structure;
- Electrical Resistivity;
- Electron Microscopy;
- Transition Temperature;
- X Ray Diffraction;
- Yttrium Compounds;
- Solid-State Physics