The Numerical Modeling and Measurement of Demagnetization Effect in Bulk YBCO Superconductors Subjected to Transverse Field

Author

Hong, Z. ; Vanderbemden, Ph. ; Pei, R. ; Jiang, Y. ; Campbell, A.M. ; Coomb, T.A.

Author_Institution

Eng. Dept., Cambridge Univ., Cambridge

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

1561

Lastpage

1564

Abstract

In this paper, the crossed field demagnetization effect of the bulk type-II superconducting materials in a variety of external magnetic field condition has been investigated both numerically and experimentally. A melt-textured YBCO bulk sample was magnetized along the axial direction and after that a transverse field perpendicular to the central axis applied. The collapse of the original trapped field was measured using a quantum design physical property measurement system. A numerical solver based on critical state model is proposed to simulate the measured results.

Keywords

barium compounds; critical phenomena; demagnetisation; high-temperature superconductors; type II superconductors; yttrium compounds; YBa₂Cu₃O₇; bulk YBCO superconductors; bulk type-II superconducting materials; critical state model; demagnetization effect; quantum design physical property measurement system; transverse field; Bulk superconductor; critical state model; crossed field effect; finite element method; numerical modeling;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.920594

Filename

4519066