Published March 15, 1988
| Version v1
Journal article
On the suppression of superconductivity in Y1-xPrxBa2Cu3O7-δ
- 1. Frei Univ., Berlin (Germany, F.R.). Fachbereich Physik
Description
Y1-xPrxBa2Cu3O7-δ compounds exhibit a progressive decrease in superconducting transition temperature with increasing x. Using soft-X-ray absorption spectroscopy at the Pr-MIV,V thresholds, Pr is shown to be trivalent for all x in these compounds contrary to expectations, excluding an obvious mechanism for the suppression of Tc based on the tetravalency of Pr. From a discussion of other possible mechanisms it is suggested that Tc decreases through changes in electronic-band structure upon Pr substitution leading ultimately to a semiconducting behaviour for x=1.0
Additional details
Publishing Information
- Journal Title
- Europhys. Lett.
- Journal Volume
- 5
- Journal Issue
- 6
- Series
- Europhys. Lett.
- Journal Page Range
- 567-571
- CODEN
- EULEE
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 19058035
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; BARIUM OXIDES; COPPER OXIDES; ELECTRIC CONDUCTIVITY; PRASEODYMIUM OXIDES; SOFT X RADIATION; STOICHIOMETRY; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; X-RAY SPECTROSCOPY; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRASEODYMIUM COMPOUNDS; RADIATIONS; RARE EARTH COMPOUNDS; SPECTROSCOPY; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; X RADIATION; YTTRIUM COMPOUNDS