Suppression of intra- and intergranular properties by transport current in Bi-based ceramic superconductors

Author

Grishin, A.M. ; Korenivski, V.N. ; Rao, K.V. ; Ulyanov, A.N.

Author_Institution

Donetsk Inst. of Phys. & Technol., Ukraine

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2220

Lastpage

2222

Abstract

The influence of a direct transport current I_dc on the diamagnetic response of Bi₂Sr ₂Ca₂Cu₃O_y ceramics as a function of temperature T has been investigated experimentally. The real χ\´(T) and imaginary χ"(T) parts of AC susceptibility shift toward lower temperatures, and the hysteretic loss values decrease as I_dc increases. In contrast to what is observed with increasing exciting magnetic field H_ac, increase of I_dc does not broaden the transition regimes in χ\´(T) and χ"(T )

Keywords

bismuth compounds; calcium compounds; ceramics; diamagnetic properties of substances; high-temperature superconductors; magnetic hysteresis; magnetic susceptibility; strontium compounds; AC susceptibility shift; Bi₂Sr₂Ca₂Cu₃O_y; diamagnetic response; high-temperature superconductors; intergranular properties; intragranular properties; transition regimes; transport current; Annealing; Ceramics; Granular superconductors; Magnetic fields; Magnetic hysteresis; Physics; Slabs; Superconductivity; Temperature dependence; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179449

Filename

179449