title: Charge density wave dislocation as revealed by coherent x-ray diffraction.
abstract: Coherent x-ray diffraction experiments have been performed on high quality crystals of the charge density wave (CDW) system K0.3MoO3. The satellite reflections associated with the CDW have been measured as a function of the 20-microm-diameter beam position. For some positions, regular fringes have been observed. We show that this observation is consistent with the presence of a single CDW dislocation. Beyond charge density wave systems, this experiment shows that coherent x-ray diffraction is a suitable tool to probe topological defects embedded in the bulk.
authors.affiliation: Laboratoire de Physique des Solides, CNRS-UMR 8502, Bâtiment 510, Université Paris-sud, 91405 Orsay cedex, France.
authors.forename: D
authors.initials: D
authors.lastname: Le Bolloc'h
authors.forename: S
authors.initials: S
authors.lastname: Ravy
authors.forename: J
authors.initials: J
authors.lastname: Dumas
authors.forename: J
authors.initials: J
authors.lastname: Marcus
authors.forename: F
authors.initials: F
authors.lastname: Livet
authors.forename: C
authors.initials: C
authors.lastname: Detlefs
authors.forename: F
authors.initials: F
authors.lastname: Yakhou
authors.forename: L
authors.initials: L
authors.lastname: Paolasini