Published March 14, 1988
| Version v1
Journal article
Evidence for a common high-temperature superconducting effect in La/sub 1.85/Sr/sub 0.15/CuO4 and YBa2Cu3O7
Creators
- 1. University of Missouri--Kansas City, Kansas City, Missouri 64110
Description
We report the positron-annihilation lifetime and Doppler-broadening energy spectra in La/sub 1.85/Sr/sub 0.15/CuO4 superconductors for 10<T<297 K. A strong temperature dependence in positron lifetime and momentum distribution parameters is observed for positron-electron annihilation data while the sample is in the superconducting state, but not while it is in the normal state. We show experimental evidence that the superconducting mechanisms in La/sub 1.85/Sr/sub 0.15/CuO4 and YBa2Cu3O7 are similar and suggest that this is a consequence of a common physics involving the delicate balance between localized and itinerant-electron behavior
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 60
- Journal Issue
- 11
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 1069-1072
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19082211
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; DOPPLER EFFECT; ELECTRON-POSITRON INTERACTIONS; ENERGY SPECTRA; LANTHANUM OXIDES; LOW TEMPERATURE; MEDIUM TEMPERATURE; STRONTIUM OXIDES; SUPERCONDUCTIVITY; SUPERCONDUCTORS; ULTRALOW TEMPERATURE; VERY LOW TEMPERATURE; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INTERACTIONS; LANTHANUM COMPOUNDS; LEPTON-LEPTON INTERACTIONS; OXIDES; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SPECTRA; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS