Published August 14, 1995
| Version v1
Journal article
Thermal stability and annealing of columnar defects in Bi2Sr2Ca1Cu2O8/Ag superconductor
- 1. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)
- 2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6061 (United States)
- 3. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6100 (United States)
Description
This work establishes the stability at elevated temperatures of columnar defects, artificially formed in the Bi-based cupric oxide superconductor Bi2Sr2Ca1Cu2O8 for enhanced vortex pinning. Isochronal anneals, conducted in air, led to losses of critical current density in two stages. The defects were relatively stable up to ∼550 degree C, where second stage annealing began; above this, the pinning diminished rapidly. The recrystallization and loss of columnar defects were corroborated by transmission electron microscopy. copyright 1995 American Institute of Physics
Additional details
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 67
- Journal Issue
- 7
- Journal Page Range
- p. 1007-1009.
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27000490
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANNEALING; BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CRYSTAL DEFECTS; HIGH-TC SUPERCONDUCTORS; MAGNETIC FLUX; RECRYSTALLIZATION; STRONTIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; VORTICES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; CURRENTS; ELECTRIC CURRENTS; ELECTRON MICROSCOPY; HEAT TREATMENTS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS