X-Ray Diffraction from Pinned Charge Density Waves

S. Rouziere; S. Ravy; S. Brazovskii; J. -P. Pouget

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arXiv · cond-mat/9911097

X-Ray Diffraction from Pinned Charge Density Waves

S. Rouziere·S. Ravy·S. Brazovskii·J. -P. Pouget

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Abstract

We present an x-ray study of doped charge density waves systems. When a 2k_f-charge density wave is strongly pinned to impurities, an interference effect gives rise to an asymmetry between the intensities of the +2k_f and -2k_f satellite reflections. Moreover, profile asymmetry of the satellite reflections indicates the existence of Friedel oscillations (FOs) around the defects. We have studied these effects in V- and W-doped blue bronzes. A syncrotron radiation study of the V-doped blue bronze clearly reveals the presence of FO around the V atoms.

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S. Rouziere, S. Ravy, S. Brazovskii, J. -P. Pouget. 1999-11-06. X-Ray Diffraction from Pinned Charge Density Waves. https://arxiv.org/abs/cond-mat/9911097

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