Jo. White et al., COMPLEX CONDUCTIVITY OF Y1-XPRXBA2CU3O7 THIN-FILMS MEASURED BY COHERENT TERAHERTZ SPECTROSCOPY, Physica. C, Superconductivity, 235, 1994, pp. 2025-2026
The complex transmission of Y1-xPrxBa2Cu3O7 single crystal thin films
has been measured in the range 0.2-1.0 THz using time domain spectrosc
opy. The complex conductivity is calculated without using a Kramers-Kr
onig analysis. All of the superconducting samples show a peak in sigma
(1)(T) below T-c. The underdoped samples show a deviation from 1/(alph
a + beta T) behavior above T-c that may be linked with the onset of a
spin gap.