Artificial flux pinning in Nb and Nb/sub 3/Sn superconductors

Author

Zhou, R. ; Hong, S. ; Marancik, W. ; Kear, B.

Author_Institution

Oxford Instrum. Inc., Carteret, NJ, USA

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

986

Lastpage

989

Abstract

Some results on artificial flux pinning centers (APCs) introduced into Nb filaments are reported. The APCs are copper in a nanometer scale which is comparable to the fluxon diameter. The preliminary results show a significant current density increase in APC samples compared with the cold worked Nb samples. The effect of APC on the upper critical field and superconducting transition temperature is also investigated. The effect of APC on the superconducting properties of Nb/sub 3/Sn which is formed by solid state diffusion process is also studied.<>

Keywords

critical current density (superconductivity); flux pinning; nanostructured materials; niobium; niobium alloys; superconducting critical field; superconducting transition temperature; tin alloys; type II superconductors; Nb; Nb/sub 3/Sn; current density; filaments; flux pinning centers; nanometer scale; solid state diffusion; superconducting transition temperature; upper critical field; Copper; Flux pinning; Niobium compounds; Niobium-tin; Shape; Superconducting transition temperature; Superconductivity; Tin; Titanium compounds; Wire;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233863

Filename

233863