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2008 | 114 | 1 | 253-256
Article title

Microwave Absorption Study on (Bi,Pb)-Sr-Ca-Cu-O Granular Superconductors

Content
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EN
Abstracts
EN
(Bi,Pb)-Sr-Ca-Cu-O is considered as a system of 2201, 2212 and 2223 superconductors embedded in the insulating matrix. The size of the grains depends on the time of recrystallization. These types of ceramics exhibit a two-step transition to superconducting state. Because electrical properties depend among other on the Josephson coupling between grains, the magnetically modulated microwave absorption study was undertaken. Magnetically modulated microwave absorption signal was observed to arise just as temperature had been lowered below T₁. The shape of this signal was studied to recognize the second temperature T₂. Some strong oscillations appear on magnetically modulated microwave absorption at lower temperatures, which might be related to local percolation breakdown in superconducting network.
Keywords
EN
Contributors
author
  • Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
  • Department of Physics, A. Mickiewicz University, Poznań, Poland
  • Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
author
  • Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Gdańsk, Poland
References
  • 1. J. Stankowski, Sci. Instrum. 5, 193 (1990)
  • 2. M. Gazda, Physica C 411, 170 (2004)
  • 3. M. Gazda, Physica C 453, 57 (2007)
  • 4. J. Stankowski, Appl. Magn. Reson. 2, 465 (1991)
  • 5. P. Pureur, Phys. Rev. B 47, 11420 (1993)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n139kz
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