Abstract
Ten new superconducting cuprate perovskites with Tcs above 77 K are reported. The highest Tc of the new group, and for any superconductor, is observed in Ba2Eu0.9Y0.1Cu3Ox which has a resistive midpoint of 94.5 K with a width of 0.7 K. Miessner effect and ac susceptibility measurements indicate bulk superconductivity in these materials. Each of these cuprates has a two-to-one ratio of divalent to trivalent ion on the A site of the perovskite-type structure.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1888-1890 |
| Number of pages | 3 |
| Journal | Physical review letters |
| Volume | 58 |
| Issue number | 18 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy