Original scientific paper

Microwave conductivity of thin YBCO film in magnetic field

N. Barišić ; Department of Physics, Faculty of Science, Bijenika 32, HR-10000 Zagreb, Croatia
A. Dulčić ; Department of Physics, Faculty of Science, Bijenika 32, HR-10000 Zagreb, Croatia
M. Požek ; Department of Physics, Faculty of Science, Bijenika 32, HR-10000 Zagreb, Croatia
D. Paar ; Department of Physics, Faculty of Science, Bijenika 32, HR-10000 Zagreb, Croatia

Abstract

The microwave response of a thin film of high temperature superconductor YBa2Cu3O7 - δ was measured for a wide region of temperatures and magnetic fields. From the measured complex frequency shift, the complex conductivity was calculated. The model for effective conductivity in the mixed state was fitted to the complex conductivity data and the values of upper critical fields Bc2(T) and depinning frequencies ω0 (T) have been obtained as fitted parameters.

Keywords

YBa2Cu3O7−δ; high temperature superconductor; thin film; complex frequency shift; complex conductivity; upper critical fields; depinning frequencies

Hrčak ID:

301016

URI

https://hrcak.srce.hr/301016

Publication date:

3.10.1999.

Article data in other languages: croatian

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