ECRYS - 93
J. Phys. IV France 03 (1993) C2-215-C2-220
Dynamics and charge density wave collective excitations of the blue bronzeJ.P. POUGET1, B. HENNION2 and M. SATO3
1 Laboratoire de Physique des Solides, CNRS URA 02, Université Paris-Sud, 91405 Orsay, France
2 Laboratoire Léon Brillouin, CEN Saclay, 91191 Gif-sur-Yvette, France
3 Department of Physics, Nagoya University, Chikusa-ku, Nagoya 464-01, Japan
Recent neutron scattering investigations of the pretransitional dynamics and of the phase and amplitude excitations of the charge density wave (CDW) condensate of the blue bronze are reviewed. It is shown that the dynamics of the Peierls transition is dominated by the intrachain fluctuations. The key role of Coulomb forces in the intrachain deformation process of the phase of the CDW is also emphasized.
© EDP Sciences 1993