Loss of superconducting phase coherence in YBa(2)Cu(3)O(7) films: vortex-loop unbinding and Kosterlitz-Thouless phenomena |
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| Authors: | Kötzler J Görlitz D Skwirblies S Wriedt A |
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| Institution: | Institut für Angewandte Physik und Zentrum für Mikrostrukturforschung, Universit?t Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany. |
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| Abstract: | The linear conductance G' + iG(") parallel to the CuO(2) planes of flat d = 50-600 nm thin films is measured between 30 mHz and 800 kHz. The decay of the phase-coherent superfluid density signals the proliferation of 3D vortex loops which terminates at T*
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