Defining regions of normal and anomalous skin effect of sintered Bi-based superconductors by the SRPM method

Author

Taguchi, Akira ; Nakane, Hirosi ; Yamazaki, Sadao ; Haseyama, Shetsu ; Yoshizawa, Shuji

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3194

Lastpage

3196

Abstract

An attempt to develop a method to simultaneously estimate both the resistivity ρ and the magnetic penetration depth λ by vectorially measuring the difference in the impedance between two circular solenoid coils, one with and the other without a cylindrical superconductor, has been made. It was ascertained that the regions of normal and anomalous skin effect can be defined from the frequency dependence of the difference in the impedance between the two coils. The mean free path of electrons l is evaluated by applying the frequency dependence of the difference in the impedance of the coils to the anomalous skin effect region. The values of ρ, λ and l of Bi-based sintered bulks with different J_c were evaluated at liquid N₂ temperature

Keywords

anomalous skin effect; bismuth compounds; calcium compounds; high-temperature superconductors; penetration depth (superconductivity); strontium compounds; BiSrCaCuO; SRPM method; anomalous skin effect; circular solenoid coils; high temperature superconductors; magnetic penetration depth; normal skin effect; resistivity; sintered Bi-based superconductors; Conductivity; Electrons; Frequency dependence; Frequency estimation; Impedance measurement; Skin effect; Solenoids; Superconducting coils; Superconducting magnets; Superconductivity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919742

Filename

919742