Frequency dependence of AC susceptibilit
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K.-H. MΓΌller
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Article
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1990
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Elsevier Science
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English
β 438 KB
The loss peak of the AC susceptibility in polycrystalline high-To superconductors shifts slightly to higher temperatures with increasing frequency of the applied AC magnetic field. It is shown that a flux creep term, added to the current density term in the critical state equation, can account for t