Giant suppression of flux-flow resistivity in heavy-ion irradiated Tl[sub 2]Ba[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10] films: Influence of linear defects on vortex transport

Journal Article · Mon Dec 28 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.3816· OSTI ID:6837911

Budhani, R C; Suenaga, M ^[1]; Liou, S H ^[2]

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1. Materials Science Division, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Department of Physics, University of Nebraska, Lincoln, Nebraska 68588 (United States)

A large shift of the onset of flux-flow resistivity and the irreversibility line [ital H][sub irr]([ital T]) to higher temperatures is observed in Tl[sub 2]Ba[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10] films containing linear defects created by Ag[sup +21] ion irradiation. The [ital H][sub irr]([ital T]), which has a characteristic [ital ssL] shape in highly anisotropic Tl and Bi based cuprates, becomes more like that of YBa[sub 2]Cu[sub 3]O[sub 7] in the presence of these defects. The [ital J][sub [ital c]] at 77 K also shows a large increase as a result of flux localization at the defects. The transport data indicate that in the [ital H]-[ital T] plane above [ital H][sub irr]([ital T]) of the unirradiated material, an ensemble of unoccupied defects is required for effective pinning of each flux line in the system.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6837911
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:26; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIAGRAMS
HIGH-TC SUPERCONDUCTORS
ION BEAMS
IRREVERSIBLE PROCESSES
LINE DEFECTS
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THALLIUM OXIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VORTICES