Vortex phase diagram and [ital J][sub [ital c]] limiting factor in high [ital T][sub [ital c]] Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10]/Ag superconducting tapes

Journal Article · Mon Jan 30 00:00:00 EST 1995 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.114144· OSTI ID:6620936

Li, Q; Wiesmann, H J; Suenaga, M ^[1]; Motowidlo, L ^[2]; Haldar, P ^[3]

---

1. Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. IGC/Advanced Superconductors, Inc., Waterbury, Connecticut 06704 (United States)
3. Intermagnetic General Corporation, Guilderland, New York 12084 (United States)

Based on our detailed measurements of current--voltage characteristics for a Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10]/Ag tape ([ital J][sub [ital c]][congruent]2[times]10[sup 4] A/cm[sup 2] at 77 K and zero field) immersed in liquid neon (27 K) and in liquid oxygen (54--90 K) as a function of applied magnetic field up to 17 T, we extended the vortex phase diagram of superconducting Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10] in the mixed state and show that [ital J][sub [ital c]] for this tape at [ital T][ge]27 K in magnetic field (except at very low field) is fundamentally limited by the transition of the vortex-solid-to-liquid [ital within] [ital grains] rather than the dissipation [ital from] [ital grain] [ital boundaries].

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6620936
• Journal Information: Applied Physics Letters; (United States), Vol. 66:5; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTING CABLES
CRITICAL CURRENT
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
GRAIN BOUNDARIES
HIGH-TC SUPERCONDUCTORS
MELTING
MIXED STATE
PHASE DIAGRAMS
STRONTIUM OXIDES
VORTICES
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CABLES
CALCIUM COMPOUNDS
CHALCOGENIDES
CONDUCTOR DEVICES
COPPER COMPOUNDS
CURRENTS
DIAGRAMS
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)
665412 - Superconducting Devices- (1992-)