Effect of pinning and thermal fluctuations on the superconducting transition of YBa2Cu3O7 very thin films

Michel Calame; Christian Leemann; L. Baselgia Stahel; Piero Martinoli

doi:10.1117/12.335884

22 December 1998 Effect of pinning and thermal fluctuations on the superconducting transition of YBa₂Cu₃O₇ very thin films

Michel Calame, Christian Leemann, L. Baselgia Stahel, Piero Martinoli

Author Affiliations +

Proceedings Volume 3481, Superconducting and Related Oxides: Physics and Nanoengineering III; (1998) https://doi.org/10.1117/12.335884
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

Citation Download Citation

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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