Microwave Properties of Cuprate Superconductors in External Magnetic Fields

Abstract

In this work, the intrinsic vortex viscosity in several cuprates are determined. It is confirmed that in REBCO (SmBCO) film the vortex viscosity is consistent with a conventional framework based on the Bardeen-Stephen model. In TBCCO a significantly smaller viscosity is observed, and possible test to assess the nature of this new effect is suggested.