2000/08/07 by D. Rideau, P. Monceau, R. Currat +9 · 1 citation
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #cond-mat.str-el
paper · pdf · doi:10.1209/epl/i2001-00608-x
arxiv created 2000/08/07 · openalex publication_date 2001/10/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
Using high-resolution X-ray scattering techniques, we have measured the wave vector of the sliding charge density wave as a function of beam position, along the length of NbSe 3 whiskers. We show that structural imperfections and radiation-induced defects increase locally the CDW pinning force, and give rise to CDW phase distortions. Using the semi-microscopic model of Brazovskii et al. ( Phys. Rev. B , 61 (2000) 10640) describing the normal ↔ condensed carrier conversion, with spatially varying parameters, we account for the experimental spatial dependence of the CDW phase gradient near both types of defects.