Neutron scattering study on the structural transition of quasi-one-dimensional conductor K0.3MoO3

Publisher Website
Google Scholar
Abstract
Preliminary results of the neutron diffraction and inelastic scattering studies on the quasi-one-dimensional conductor K0.3MoO3 with a metal-insulator transition are reported. The temperature dependence of the intensity of the superlattice reflection is found to be approximately described by a simple equation. A phonon mode seems to have an almost complete softening at the transition temperature Tc. The existence of the large central peak in the inelastic spectra above Tc suggest that the local correlation between electrons is very strong. The wavevector of the charge density wave smoothly approaches the commensurate one, as the temperature is lowered and lock-in transition does not occur down to T approximately=6K.