Abstract
Coherent X-ray diffraction experiments have been performed on high quality crystals of the charge density wave (CDW) system Ko 0.3 MoO 3 . Regular fringes have been observed which are consistent with the presence of a single CDW dislocation. This dislocation is a screw-like dislocation which runs along chains axis and with a Burgers vector parallel to the CDW modulation. This first measurement confirms the presence of CDW dislocation embedded in the bulk in CDW systems and could throw light on the role of such topological defects in conversion processes of normal electrons in condensed electrons.
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