Transport critical current in silver sheathed BiPbSrCaCuO tapes

Author

Takahashi, C. ; Komatsu, M. ; Yaegashi, Y. ; Nagano, M. ; Takahashi, H. ; Hamada, K. ; Nagata, A.

Author_Institution

Tohoku Electric Power Co. Inc., Sendai, Japan

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

957

Lastpage

960

Abstract

The temperature and magnetic field dependences of transport critical current density, J/sub c/, in silver-sheathed Bi/sub 2.1/Pb/sub 0.4/Sr/sub 2.2/Ca/sub 3.4/0/sub 4.2/ tapes have been studied. J/sub c/ was weakly dependent on magnetic fields at temperatures below 30 K. The effect of field-variation history on J/sub c/ was observed in the same temperature region. The magnetic field dependence of J/sub c/ and its anisotropy with respect to the field direction increased rapidly with increasing temperature. The irreversibility field and its anisotropy were also studied. Flux pinning and weak coupling properties are discussed.<>

Keywords

bismuth compounds; calcium compounds; composite superconductors; critical current density (superconductivity); flux pinning; high-temperature superconductors; lead compounds; silver; strontium compounds; 5 to 77 K; Bi/sub 2.1/Pb/sub 0.4/Sr/sub 2.2/Ca/sub 3.4/O/sub 4.2/-Ag; critical current density; flux pinning; high temperature superconductivity; irreversibility field; magnetic field dependences; temperature dependence; weak coupling properties; Anisotropic magnetoresistance; Bismuth; Critical current; Critical current density; Flux pinning; History; Magnetic fields; Silver; Strontium; Temperature dependence;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233855

Filename

233855