AC Susceptibility of the YBa_2Cu_3O_7 Coated Conductor in High Magnetic Fields

• Authors: E. Seiler , L. Frolek
• Languages of publication: EN

Abstracts

EN

The AC susceptibility of the YBa_2Cu_3O_7 coated conductor in the perpendicular applied AC magnetic field was investigated using an inductive experimental setup with a pair of coils connected in opposite. A harmonic homogeneous AC magnetic field was applied perpendicularly to the wide face of the YBa_2Cu_3O_7 coated tape. Together with this AC field, a parallel background DC magnetic field up to 14 T was applied perpendicularly to the tape. The measurements were performed at several constant temperatures in the range 3-50 K. In the region of high background DC fields (8-14 T) no influence of the tape's ferromagnetic substrate was detected, despite of the low measurement temperatures employed. The estimate of the critical current density (j_c) at 20 K and 14 T, based on the position of the imaginary AC susceptibility peak, gives the value j_c=0.53 MA/cm^2.

Keywords

EN

84.71.Mn

Discipline

• 84.71.Mn: Superconducting wires, fibers, and tapes

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 379-382

Dates

published

2008-01

received

2007-07-09

Contributors

author

E. Seiler

• Institute of Electrical Engineering, Centre of Excellence CENG, Slovak Academy of Sciences, D'ubravskácesta 9, 841 04 Bratislava, Slovakia

author

L. Frolek

• Institute of Electrical Engineering, Centre of Excellence CENG, Slovak Academy of Sciences, D'ubravskácesta 9, 841 04 Bratislava, Slovakia

References

• 1. K. Kakimoto, Y. Iijima, T. Saitoh, Physica C 392-396, 783 (2003)
• 2. E.H. Brandt, M. Indenbom, Phys. Rev. B 48, 12893 (1993)
• 3. F. Gömöry, R. Tebano, A. Sanchez, E. Pardo, C. Navau, I. Husek, F. Strycek, P. Kovac, Supercond. Sci. Technol. 15, 1311 (2002)

Identifiers

DOI

10.12693/APhysPolA.113.379