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22 December 1998 Effect of pinning and thermal fluctuations on the superconducting transition of YBa2Cu3O7 very thin films
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Abstract
The complex ac sheet impedance of c-axis oriented YBa2Cu3O7 thin films was measured as a function of temperature in the frequency range 102Hz - 105 Hz for film thicknesses varying between 24 Angstrom and 1100 Angstrom. We present the measurements on the thinnest films and examine their consistency with the predictions from various models for the superconducting transition, in particular the Kosterlitz- Thouless (KT) theory for the vortex-antivortex unbinding phase transition.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michel Calame, Christian Leemann, L. Baselgia Stahel, and Piero Martinoli "Effect of pinning and thermal fluctuations on the superconducting transition of YBa2Cu3O7 very thin films", Proc. SPIE 3481, Superconducting and Related Oxides: Physics and Nanoengineering III, (22 December 1998); https://doi.org/10.1117/12.335884
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