Published March 18, 1991
| Version v1
Journal article
Superconductivity and hole doping in Pr0.5Ca0.5Ba2Cu3O7-δ thin films
- 1. Solid State Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6056 (USA)
Description
We have grown superconducting Pr0.5Ca0.5Ba2Cu3O7-δ epitaxial thin films that exhibit a superconducting onset temperature of 43 K with Tc(R=0)=34.9 K. This is the first time, to our knowledge, that 1:2:3-phase superconductivity has been achieved by substituting Ca for Pr, without the presence in the alloy of Υ or any other rare-earth element R for which RBa2Cu3O7-δ is superconducting. This result supports the view that hole localization/filling contributes substantially to the suppression of superconductivity by Pr in PrBa2Cu3O7-δ, and clearly demonstrates that this suppression can be compensated by appropriate hole doping with Ca
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 66
- Journal Issue
- 11
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 1537-1540
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22059582
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BARIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; CRYSTAL DOPING; ELECTRIC CONDUCTIVITY; EPITAXY; EXPERIMENTAL DATA; HOLES; INHIBITION; LOW TEMPERATURE; MEDIUM TEMPERATURE; PRASEODYMIUM OXIDES; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; ULTRALOW TEMPERATURE; VERY LOW TEMPERATURE; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; DATA; DIFFRACTION; ELECTRICAL PROPERTIES; FILMS; INFORMATION; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS