Abstract
By using x-ray scattering and multiple diffraction techniques, this study seeks to revisit the dynamic transition of charge density waves in K0.3MoO3, a quasi-one-dimensional charge-density-wave material, under applied voltage. The three-wave diffraction was performed to obtain information about the triplet phase and simulation of the modulation of underlying lattice was done. Together with consideration of dynamical theory of x-ray di□raction, thisestablished the connection between the lattice distortion and the triplet phase in x-ray diffraction and helped to understand the dynamical transition of charge density wave. The results showed clear evidences of dynamical phase transition of charge density wave under applied voltage and the corresponding atomic displacement was calculated.