Publication | Closed Access
EPR study of the high-<i>T<sub>C</sub></i>superconductor YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7−δ</sub>
11
Citations
4
References
1988
Year
Materials ScienceSuperconducting MaterialHigh-tc SuperconductivityEngineeringAbstract Epr SpectraPhysicsHigh-temperature SuperconductivityCondensed Matter PhysicsQuantum MaterialsSuperconductivityApplied PhysicsEpr StudyCu2+ IonsEpr SignalHigh Tc SuperconductorsSuperconducting DevicesLow-temperature Superconductivity
Abstract EPR spectra of superconducting YBa2Cu3O7-δ and insulating Y2BaCuO5 have been examined. The intensity of Cu2+ ions in YBa2Cu3O7-δ is about 1/3000 of that in Y2BaCuO5 at room temperature. Owing to the Meissner effect in the superconducting state, the EPR signal of Cu2+ ions in YBa2Cu3O7-δ disappears; moreover the EPR signal of DPPH deposited on the YBa2Cu3O7-δ specimen is shifted. An additional EPR line is found for YBa2(Cu2.94Cr0.06)O7-δ at temperatures below 113K; this can be related to the phenomenon of superconductivity.
| Year | Citations | |
|---|---|---|
Page 1
Page 1