Direct Measurement of Spatial Distortions of Charge Density Waves in K0.3MoO3

Details Direct Measurement of Spatial Distortions of Charge Density Waves in K0.3MoO3 Direct Measurement of Spatial Distortions of Charge Density Waves in K0.3MoO3

2004-12-27

arxiv.org/abs/cond-mat/0412696v2

Appl. Phys. Lett. 88, 241916 (2006)

Physics

Condensed Matter

Materials Science

minor changes, 4 pages, 4 figures

Scientific paper

Using X-ray scattering and the technique of multiple diffreactions, we revisit the dynamical transition of charge density waves (CDWs) in K0.3MoO3 under applied voltages. In addition to the usual transport and half width (of Bragg peaks) measurements, we also measure the triplet phase by three-wave diffraction, which provides, for the first time, the {\em direct} evidence for the spatial distortions of CDWs. This novel and sensitive technique developed here can be applied to general periodic media, including stripes in high temperature superconductors, and provide a new perspective into interesting phenomena in these materials.

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