Published January 1, 1989
| Version v1
Journal article
Positron annihilation in the high-T/sub c/ superconductors
Creators
- 1. Section of Applied Physics, Yale University, P.O. Box 2157 Yale Station, New Haven, Connecticut 06520
Description
A model for positron annihilation in the high-T/sub c/ oxides is constructed based on the strongly correlated nature of the electrons in these systems. It is shown that the change in positron lifetime as a function of temperature in superconducting, nearly defect-free YBa2Cu3O7 and La/sub 1.85/Sr/sub 0.15/CuO4 can be understood on the basis of this model assuming that real hole-pair formation takes place in the superfluid state. The observed positron-lifetime changes in YBa2Cu3O/sub 7-//sub x/ as a function of x is also found to be consistent with this model
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 39
- Journal Issue
- 1
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 215-221
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20033068
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANNIHILATION; BARIUM OXIDES; COPPER OXIDES; ELECTRONIC STRUCTURE; LANTHANUM OXIDES; LIFETIME; POSITRONS; STRONTIUM OXIDES; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LANTHANUM COMPOUNDS; LEPTONS; MATTER; OXIDES; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS