Inter- and Intragrain Magnetization of Thallium-Based Superconductors

• Authors: W. Tokarz , Z. Kąkol , A. Kołodziejczyk , W. König , G. Gritzner
• Languages of publication: EN

Abstracts

EN

We report on magnetization and magnetic hysteresis measurements for the (Tl_{0.6}Bi_{0.5})(Sr_{0.9}Ba_{0.1})_{2}Ca_{2}Cu_{3}O_{y} Ag-sheathed superconducting tape as well as for the powdered and bulk (Tl_{0.6}Pb_{0.5})(Sr_{0.9}Ba_{0.1})_{2}Ca_{2}Cu_{3}O_{y} superconductors. For the investigated tape and bulk specimens the low field magnetization showed a deviation from the ideal linear M(H) dependence, which was attributed to the superposition of inter- and intragrain superconducting currents. Fitting of the theoretical magnetization curves to the experimental data allowed for the independent determination of the intragrain critical current densities for the superconducting grains and intergrain critical current densities for the weak link system at 77K.

Keywords

EN

74.72.Fq; 74.72.-h; 74.50.+r

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 98
• Issue: 5
• Pages: 633-636

Dates

published

2000-11

Contributors

author

W. Tokarz

• Department of Solid State Physics, Faculty of Physics and Nuclear Techniques University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

author

Z. Kąkol

• Department of Solid State Physics, Faculty of Physics and Nuclear Techniques University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

author

A. Kołodziejczyk

• Department of Solid State Physics, Faculty of Physics and Nuclear Techniques University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

author

W. König

• Institut für Chemische Technologie Anorganischer Stoffe Johannes Kepler Universität Linz, 4040 Linz, Austria

author

G. Gritzner

• Institut für Chemische Technologie Anorganischer Stoffe Johannes Kepler Universität Linz, 4040 Linz, Austria