Published June 5, 1995
| Version v1
Journal article
Revival of superconductivity in Y0.4Pr0.6Ba2Cu3O7-δ by the isovalent substitution of Sr
Creators
- 1. Dept. of Appl. Chem., Univ. of Sci. and Technol. of China, Hefei (China)
Description
Polycrystalline samples of Y0.4Pr0.6Ba2Cu3O7-δ have been prepared and characterized by X-ray powder diffraction, differential thermal analysis and temperature dependence of resistivity and AC susceptibility. We observed that both superconductivity and metallic conductivity were revived at x≥0.75, accompanied by an orthorhombic-to-tetragonal transition. The superconducting transition temperature could be further enhanced by increasing the Sr content, suggesting that there is an ion-size effect on Tc at the Ba site. The results were discussed in terms of the Pr-O covalent bonding effect. (author). Letter-to-the-editor
Availability note (English)
Available online at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://www.iop.org/;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 7
- Journal Issue
- 23
- Journal Page Range
- p. L287-L292
- ISSN
- 0953-8984
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- Uzbekistan
- INIS RN
- 32021452
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM COMPOUNDS; CONCENTRATION RATIO; CRYSTAL-PHASE TRANSFORMATIONS; CUPRATES; DIFFERENTIAL THERMAL ANALYSIS; ELECTRIC CONDUCTIVITY; HIGH-TC SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; PRASEODYMIUM COMPOUNDS; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; COHERENT SCATTERING; COPPER COMPOUNDS; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC PROPERTIES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SUPERCONDUCTORS; THERMAL ANALYSIS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Notes
- 12 refs