ECRYS - 93
J. Phys. IV France 03 (1993) C2-103-C2-108
Fluctuation effects in the electrodynamic response of charge density wave condensatesL. DEGIORGI
Laboratorium für Festkoerperphysik, ETH-Zürich, 8093 Zürich, Switzerland
We report on the temperature dependence of the electrodynamic response of the CDW model compound K0.3MoO3 and its alloys. We found clear evidence of a pseudogap excitation and of the formation of a narrow Drude-like resonance at T>TCDW, as consequence of the precursor effects of the CDW phase transition. Moreover, we found signatures of the important role played by the thermal lattice fluctuations on the electrodynamic properties.
© EDP Sciences 1993