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2007 | 111 | 5 | 737-743
Article title

The Irreversibility Fields of (Tl_{0.5}Pb_{0.5}) (Sr_{0.85}Ba_{0.15})_2Ca_2Cu_3O_z Film on Polished Silver Substrate

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EN
Abstracts
EN
Superconducting (Tl_{0.5}Pb_{0.5})(Sr_{0.85}Ba_{0.15})_2Ca_2Cu_3O_z film was prepared on a highly polished, untextured silver substrate. A superconducting transition temperature (T_{c,50%}) of 114.7±0.3 K was obtained from the resistance versus temperature measurements for different applied ac currents. The density of the critical current measured by transport method was found to be 11.4×10^3 A/cm^2 at 77 K in the self field. This value is smaller than the value calculated from ac susceptibility data: 53×10^3 A/cm^2 at 77 K. The magnetical broadening of the resistivity transition to the superconducting state was observed. The irreversibility fields of the thallium based film were obtained from magnetoresistive measurements for both parallel to the c-axis and parallel to the $ab$ plane showing the anisotropy according to the magnetic field direction. The irreversibility fields as a function of temperature were successfully fitted by the power law.
Keywords
EN
Publisher

Year
Volume
111
Issue
5
Pages
737-743
Physical description
Dates
published
2007-05
Contributors
author
  • Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
author
  • Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
  • Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
author
  • Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, 4040 Linz, Austria
author
  • Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, 4040 Linz, Austria
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv111n510kz
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