Charge density wave dislocation as revealed by coherent x-ray diffraction.
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.
Le Bolloc'h
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Laboratoire de Physique des Solides, CNRS-UMR 8502, Bâtiment 510, Université Paris-sud, 91405 Orsay cedex, France.
Ravy
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S
Dumas
J
J
Marcus
J
J
Livet
F
F
Detlefs
C
C
Yakhou
F
F
Paolasini
L
L