1. 'A single charge density wave dislocation observed by coherent x-ray diffraction'
- Author
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D. Le Bolloc'h, J. Marcus, Carsten Detlefs, Flora Yakhou, Frédéric Livet, Sylvain Ravy, J. Dumas, Luigi Paolasini, Science et Ingénierie des Matériaux et Procédés (SIMaP), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Diffraction ,Condensed matter physics ,Chemistry ,business.industry ,General Physics and Astronomy ,Electron ,[CHIM.MATE]Chemical Sciences/Material chemistry ,01 natural sciences ,010305 fluids & plasmas ,Topological defect ,Condensed Matter::Materials Science ,Optics ,Modulation ,Condensed Matter::Superconductivity ,0103 physical sciences ,X-ray crystallography ,Condensed Matter::Strongly Correlated Electrons ,[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering ,Dislocation ,business ,Charge density wave ,Burgers vector - 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.
- Published
- 2005