Title :
Large magnetic field induced fluctuation effect in superconducting Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/ tape
Author :
Li, Q. ; Suenaga, M. ; Hikata, T. ; Sato, K.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
The magnetic-field-induced fluctuation effect in a highly textured Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/ tape is studied, based on magnetization measurements. Extremely large induced excess diamagnetism in high fields was observed at temperatures down to 75 K. In weak fields, fluctuation significantly reduced the diamagnetism of this system just below T/sub c/. The role this large extended fluctuation effect plays in the application of the Bi-based superconductor family is discussed.<>
Keywords :
bismuth compounds; calcium compounds; fluctuations in superconductors; high-temperature superconductors; magnetisation; strontium compounds; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/ tape; excess diamagnetism; high temperature superconductors; highly textured; magnetic field induced fluctuation effect; magnetization; Bismuth; Fluctuations; Magnetic field measurement; Magnetic properties; Magnetization; Strontium; Superconducting epitaxial layers; Superconducting films; Superconducting materials; Temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
