Analysis of Measurement Method for Critical Current Density by Using Permanent Magnet

Author

Ikuno, Soichiro ; Takayama, Teruou ; Kamitani, Atsushi ; Takeishi, Kenta ; Saito, Atsushi ; Ohshima, Shigetoshi

Author_Institution

Sch. of Comput. Sci., Tokyo Univ. of Technol., Hachioji, Japan

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

3591

Lastpage

3594

Abstract

The Permanent Magnet method for measuring critical current density in high-temperature superconducting thin film is numerically and experimentally investigated. Numerical results show that the critical current density is approximately proportional to the maximum repulsive force. Furthermore, the maximum repulsive force increases as the value of diameter of permanent magnet increases. These tendency is also observed in the experimental investigation. Finally, the spatial distributions of the shielding current density are reproduced by the system experimentally.

Keywords

critical current density (superconductivity); electric current measurement; high-temperature superconductors; numerical analysis; permanent magnets; superconducting thin films; critical current density; high-temperature superconducting thin film; maximum repulsive force; permanent magnet; spatial distributions; Critical current density; element-free Galerkin; high ${rm T}_{rm c}$ superconductor;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2020373

Filename

5153235