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AbstractAbstract
[en] The effect of a single pulse magnetic field on the resonant frequency and quality factor of an YBa2Cu3O7-δ thin film strip-line resonator was studied at different temperatures and input power levels. It was shown that: (i) the induced magnetic flux and screening dc current, resulting from the pulse action, noticeably change both the resonant frequency and the quality factor; and (ii) relaxation of the trapped flux and induced current, caused by the flux creep process (at rather high temperatures), lead to a time evolution of these resonator characteristics. This relaxation proceeds in two stages: quick relaxation during the first 1-2 s (at T = 78 K) and long term (logarithmic) relaxation. The rate of long term relaxation increases with temperature increase; on the other hand it does not depend on the input power level
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EUCAS '07: 8. European conference on applied superconductivity; Brussels (Belgium); 16-20 Sep 2007; S0953-2048(08)60957-4; Available from http://dx.doi.org/10.1088/0953-2048/21/3/035007; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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