Anomalous millimeter-wave absorption in the superconducting phase of La2-xSrxCuO4
Pronin, AV × Gorshunov, BP Volkov, AA Somal, HS van der Marel, D Feenstra, BJ Jaccard, Y Locquet, Jean-Pierre #
AMER INST PHYSICS
JETP letters vol:68 issue:5 pages:432-436
date:Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia; Univ Groningen, NL-9747 AG Groningen, Netherlands; IBM Corp, Div Res, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland
Direct measurements of the complex conductivity spectra of thin-film La2-xSrxCuO4 are made at frequencies of 5-40 cm(-1). Narrow, intense Drude-type excitation is observed in the superconducting phase. (C) 1998 American Institute of Physics. [S0021-3640(98)01017-2].