Critical current densities and voltage-current characteristics in Ag-sheathed Bi-2223 tapes

Author

Mawatari, Y. ; Yamasaki, H. ; Kosaka, S.

Author_Institution

Electrotech. Lab., Ibaraki, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

1305

Lastpage

1308

Abstract

Magnetic field and temperature dependence of the critical current density and voltage-current characteristics of Bi-2223 tapes in the magnetic field parallel to the c-axis are studied. The power-law dependence of the critical current density on the magnetic field at low fields suggests the brickwall model, and the magnetic field dependence of the macroscopic pinning force density shows clear scaling behavior at high temperatures. Furthermore, we performed the critical scaling analysis for voltage-current characteristics based on the vortex-glass-liquid transition theory.<>

Keywords

bismuth compounds; calcium compounds; critical current density (superconductivity); flux pinning; high-temperature superconductors; silver; strontium compounds; superconducting tapes; Ag-BiSrCaCuO; Ag-sheathed Bi-2223 tapes; brickwall model; critical current densities; critical scaling analysis; high temperature superconductors; low fields; macroscopic pinning force density; magnetic field dependence; power-law dependence; scaling behavior; temperature dependence; voltage-current characteristics; vortex-glass-liquid transition theory; Critical current; Critical current density; Current measurement; Electrical resistance measurement; High temperature superconductors; Magnetic field measurement; Magnetic fields; Superconducting films; Temperature dependence; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402802

Filename

402802