Published 1992
| Version v1
Book
Systematic positron studies of high temperature superconductivity: neutron-irradiated YBa2Cu3O7
Creators
- 1. Univ. of Missouri, Kansas City (United States)
- 2. Texas Center for Superconductivity, Univ. of Houston (United States)
Description
The positron lifetime experiments as a function of fast neutron irradiation dose and of annealing temperature in the YBa2Cu3O7 superconductors have been performed. The positron lifetime is found to increase as a function of dose of fast neutron irradiation up to 9.0 X 1017 n/cm2. From the positron results, we find that two types of defects are generated due to neutron irradiation: cationic vacancies (τ ≅ 230 ps) and a large void (τ ≅ 465 ps). A direct correlation between the intensity of large voids (size = 25 ± 5 A) and the critical current density is found
Additional details
Publishing Information
- Publisher
- Trans Tech Publ.
- Imprint Place
- Aedermannsdorf (Switzerland)
- ISBN
- 0-87849-636-X
- Imprint Title
- Positron annihilation. Proceedings
- Imprint Pagination
- 690 p.
- Journal Volume
- 105-110
- Journal Issue
- pt.2
- Series
- Materials science forum.
- Journal Page Range
- p. 755-758.
Conference
- Title
- 9. international conference on positron annihilation (ICPA-9).
- Dates
- 26-31 Aug 1991.
- Place
- Szombathely (Hungary).
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- Switzerland
- INIS RN
- 24052472
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANNEALING; ANNIHILATION; BARIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CRYSTAL DEFECTS; CURRENT DENSITY; HIGH-TC SUPERCONDUCTORS; LIFETIME; NEUTRONS; PHYSICAL RADIATION EFFECTS; POSITRONS; QUATERNARY COMPOUNDS; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; VACANCIES; VOIDS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; AMINES; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BARIUM COMPOUNDS; BARYONS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HEAT TREATMENTS; INTERACTIONS; LEPTONS; MATTER; NUCLEONS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; POINT DEFECTS; RADIATION EFFECTS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS