Study of Resistive Superconducting Transition of Bulk (Bi_{0.6}Pb_{0.4})_2Sr_2Ca_2Cu_{3}O_{x}

• Authors: W. Woch , M. Chrobak , R. Zalecki , A. Kołodziejczyk
• Languages of publication: EN

Abstracts

EN

The temperature widths of the resistive transition as well as the thermal fluctuations of bulk (Bi_{0.6}Pb_{0.4})_2Sr_2Ca_2Cu_{3}O_{x} superconductor with T_{c,50%} = 107.1 K were studied. The applied magnetic field widens the resistive transition according to the following formula: ΔT = CH^{m} + ΔT_{0}. The value of exponent m = 0.44 suggests that there is strong pining of vortices, especially at lower temperatures. The critical exponents λ of the conductivity were calculated using the following equation: Δσ = Kε^{-λ}, with the λ_1 = 1.75 close to the zero critical temperature and λ_2 = 3.77 at higher temperatures. These values were discussed within the available theoretical models.

Keywords

EN

74.25.F-; 74.25.Uv; 74.25.Wx; 74.72.-h; 64.60.F-

Discipline

• 74.72.-h: Cuprate superconductors
• 64.60.F-: Equilibrium properties near critical points, critical exponents
• 74.25.Wx: Vortex pinning (includes mechanisms and flux creep)
• 74.25.F-: Transport properties
• 74.25.Uv: Vortex phases (includes vortex lattices, vortex liquids, and vortex glasses)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 328-329

Dates

published

2014-07

Contributors

author

W. Woch

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

author

M. Chrobak

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

author

R. Zalecki

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

author

A. Kołodziejczyk

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

References

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Identifiers

DOI

10.12693/APhysPolA.126.328