Irradiation-enhanced pinning in YBa[sub 2]Cu[sub 3]O[sub 7 [minus] x] crystals
- International Business Machines Corp., Yorktown Heights, NY (United States). Thomas J. Watson Research Center
- Oak Ridge National Lab., TN (United States)
This paper reports that deliberately introducing defects by particle irradiation is an effective way to increase the flux pinning in high-critical-temperature superconductors, which is a requirement for technological applications of these materials. Proton irradiation generates a random distribution of point defects, which largely enhances the critical current in YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] single crystals; but it is not effective in shifting the irreversibility line to higher magnetic fields. The aligned columnar defects created by high-energy heavy-ion irradiation generate even stronger vortex pinning, resulting in higher critical currents at high temperatures and fields and a large displacement of the irreversibility line to higher fields.
- OSTI ID:
- 6917055
- Journal Information:
- JOM (Journal of the Minerals, Metals and Materials Society); (United States), Journal Name: JOM (Journal of the Minerals, Metals and Materials Society); (United States) Vol. 44:10; ISSN JOMMER
- Country of Publication:
- United States
- Language:
- English
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ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARYONS
CHARGED PARTICLES
COPPER COMPOUNDS
CRITICAL CURRENT
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
CUPRATES
CURRENTS
ELECTRIC CURRENTS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY IONS
HIGH-TC SUPERCONDUCTORS
IONS
MAGNETIC FLUX
MONOCRYSTALS
NUCLEONS
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
POINT DEFECTS
PROTONS
RADIATION EFFECTS
RANDOMNESS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS