Critical Currents, Magnetization and Microwave Absorption of (Tl_{0.5}Pb_{0.5})Sr_2(Ca_{0.8}Gd_{0.2})Cu_2O_{z} Superconductor

• Authors: W. Woch , J. Niewolski , W. Tokarz , A. Kołodziejczyk , H. Sudra , G. Gritzner
• Languages of publication: EN

Abstracts

EN

The bulk (Tl_{0.5}Pb_{0.5})Sr_2(Ca_{1 - x}Gd_{x})Cu_2O_{z} superconductors with x = 0.1, 0.2 and 0.3 have unique and very interesting magnetic and electrical properties. In this paper we focused our attention on the superconductor with gadolinium content x = 0.2. We measured the magnetic field dependences of the transport critical currents, the microwave absorption as well as the magnetization for different temperatures. The critical temperature of this sample is T_c = 105.3 ± 0.2 K and the transition width Δ T_{90% - 10%} = 3.6 ± 0.2 K. The critical current of this superconductor is J_c = 1 820 ± 10 A/cm^2 at 77 K. The data were analyzed within the frame of the Bean and Kim models as well as the percolation model.

Keywords

EN

74.81.Bd; 74.25.Sv; 74.81.Fa

Discipline

• 74.81.Fa: Josephson junction arrays and wire networks(see also 85.25.Cp Josephson devices)
• 74.81.Bd: Granular, melt-textured, amorphous, and composite superconductors
• 74.25.Sv: Critical currents

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 2
• Pages: 319-322

Dates

published

2010-08

Contributors

author

W. Woch

• Solid State Physics Department, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

author

J. Niewolski

• Solid State Physics Department, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

author

W. Tokarz

• Solid State Physics Department, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

author

A. Kołodziejczyk

• Solid State Physics Department, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

author

H. Sudra

• Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, Altenbergerstr. 69, 4040 Linz, Austria

author

G. Gritzner

• Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, Altenbergerstr. 69, 4040 Linz, Austria

References

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Identifiers

DOI

10.12693/APhysPolA.118.319