Frequency dependence of HTS AC harmonic susceptibility in the Kim-Anderson and collective pinning vortex glass models

Author

Gioacchino, Daniele Di ; Tripodi, Paolo ; Celani, Francesco ; Testa, Alberto Maria ; Pace, Sandro

Author_Institution

Nat. Inst. Nucl. Phys., Frascati, Italy

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3924

Lastpage

3927

Abstract

By numerically solving the nonlinear magnetic flux diffusion equation, the temperature dependence of the AC magnetic susceptibility have been computed at different frequencies in the framework of the collective pinning vortex glass and of the Kim-Anderson models. In particular the frequency dependence of the amplitude of the third harmonic have been analyzed. Such dependence is determined by the dynamic curvature of the E-J characteristics, normalized to the dynamic resistivity

Keywords

flux pinning; high-temperature superconductors; magnetic flux; magnetic susceptibility; AC magnetic susceptibility; E-J characteristics; HTS AC harmonic susceptibility; Kim-Anderson model; collective pinning vortex glass models; dynamic curvature; dynamic resistivity; frequency dependence; nonlinear magnetic flux diffusion equation; temperature dependence; third harmonic; Differential equations; Frequency dependence; Glass; Harmonic analysis; High temperature superconductors; Magnetic susceptibility; Nonlinear equations; Nonlinear magnetics; Temperature dependence; Type II superconductors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919931

Filename

919931