Low-temperature vortex state of the high-[ital T][sub [ital c]] superconductor Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10] in high magnetic fields

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.51.701· OSTI ID:6701414

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)

We report 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 immersed in liquid neon (27 K) and in liquid oxygen (54--90 K) as a function of applied magnetic field up to 17 T. It is found that the electric-field-versus-current-density ([ital E]-[ital J]) curves can be well described by the relation [ital E]/[ital J][similar to]exp[[minus]([ital J][sub 0]/[ital J])[sup [mu]]], where [ital J][sub 0] is a constant. The exponent [mu] at elevated temperature ([ital T][ge]54 K) is less than 0.9, and is inconsistent with the vortex-glass description, which predicts [mu][lt]1. At low-temperature ([ital T]=27 K), a plateau in the value of [mu]([approx]1.45) is found for 2[le][ital H][le]8 T, which may be described by the collective creep theory at this temperature and field range.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6701414
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 51:1; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS