Influence of Ferromagnetic Layer on Critical Current of a Superconducting Wire

• Authors: F. Gömöry , M. Vojenčiak , J. Šouc , E. Seiler
• Languages of publication: EN

Abstracts

EN

We investigated how a 10-50 μm layer from soft ferromagnetic material, incorporated in the architecture of a composite superconducting tape, could influence the capability of the tape to transport electrical current. Numerical procedure was developed to calculate the local distribution of magnetic field and current in the condition when all the superconductor is carrying its critical current density. It was found that the concentration of magnetic flux in ferromagnetic layers allows to reduce the local value of magnetic flux density felt by the superconductor. In this way, the critical current of the tape in low applied magnetic fields can be improved. This theoretical prediction is confirmed by experimental observation.

Keywords

EN

41.20.Gz; 74.25.Fy; 74.25.Nf

Discipline

• 41.20.Gz: Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 605-608

Dates

published

2008-01

received

2007-07-09

Contributors

author

F. Gömöry

• Institute of Electrical Engineering, Centre of Excellence CENG, Slovak Academy of Sciences, Bratislava, Slovakia

author

M. Vojenčiak

• Institute of Electrical Engineering, Centre of Excellence CENG, Slovak Academy of Sciences, Bratislava, Slovakia

author

J. Šouc

• Institute of Electrical Engineering, Centre of Excellence CENG, Slovak Academy of Sciences, Bratislava, Slovakia

author

E. Seiler

• Institute of Electrical Engineering, Centre of Excellence CENG, Slovak Academy of Sciences, Bratislava, Slovakia

References

• 1. M. Majoros, B.A. Glowacki, A.M. Campbell, Physica C 338, 251 (2001)
• 2. F. Gömöry, Appl. Phys. Lett. 89, 072506 (2006)
• 3. http://www.trithor.com/pdf/datasheets/Trithor_HTSWires_w.pdf
• 4. FEMLAB 3.0 Electromagnetics Module User's Guide, Comsol AB 1994-2004, http://www.comsol.com/

Identifiers

DOI

10.12693/APhysPolA.113.605