The 60- and 90-K superconductivity in EuBa2Cu3O7- has been investigated under pressures up to 16 kbar. Unusually large pressure effects on the normal-state resistivity and the superconducting transition temperature of the 60-K compound were observed in contrast to the 90-K one. A subtle difference between the 30-, 60-, and 90-K superconductors is therefore proposed.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics