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Transport and microwave properties of YBa/sub 2/Cu/sub 3/O/sub x/ thin films in low magnetic fields

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5 Author(s)
Mahel, M. ; Dept. of Solid State Phys., Comenius Univ., Bratislava, Czechoslovakia ; Benacka, S. ; Adam, R. ; Darula, M.
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Measurements of the transport critical current and the modulated microwave absorption in low magnetic fields up to 15 mT are presented for c-axis-oriented YBa/sub 2/Cu/sub 3/O/sub x/ thin films at 4.2 K and 77 K. Both the transport critical current and the microwave losses are believed to be determined by the weak links. The intergranular critical state and the influence of the intragranular magnetization are introduced in order to account for the magnetic hysteresis effects. The experimental results agree with those obtained are fitted by a theoretical model.<>

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Applied Superconductivity, IEEE Transactions on  (Volume:3 ,  Issue: 1 )