The far-infrared transmission spectra for high-conductivity Bi2Sr2CaCu2O8 films with the radiation polarized in the ab plane have been measured for temperatures above and below Tc. The normal-state properties show a Drude-like response. The transmission spectrum can be used to derive both the dc conductivity (90 1/4 cm at Tc) and the relaxation rate (165 cm-1 at Tc). If an energy gap at 3.5kTc or higher is assumed then the film is in the clean limit. In the superconducting state the transmission drops at low frequency but remains finite.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics