Observation of correlations up to the micrometer scale in sliding charge-density waves

D. Le Bolloc'h; V. L. R. Jacques; N. Kirova; J. Dumas; S. Ravy; J. Marcus; F. Livet

doi:10.1103/PhysRevLett.100.096403

Observation of correlations up to the micrometer scale in sliding charge-density waves

Strongly Correlated Electrons 2025-01-08 v3

Authors: D. Le Bolloc'h , V. L. R. Jacques , N. Kirova , J. Dumas , S. Ravy , J. Marcus , F. Livet

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Abstract

High-resolution coherent x-ray diffraction experiment has been performed on the charge density wave (CDW) system K $_{0.3}$ MoO $_3$ . The $2k_F$ satellite reflection associated with the CDW has been measured with respect to external dc currents. In the sliding regime, the $2k_F$ satellite reflection displays secondary satellites along the chain axis which corresponds to correlations up to the micrometer scale. This super long range order is 1500 times larger than the CDW period itself. This new type of electronic correlation seems inherent to the collective dynamics of electrons in charge density wave systems. Several scenarios are discussed.

Keywords

charge density waves sliding regime coherent x-ray diffraction long-range order electronic correlations k$_{0.3}$moo$_3$ $2k_F$ satellite reflection

Cite

@article{arxiv.0711.4227,
  title  = {Observation of correlations up to the micrometer scale in sliding charge-density waves},
  author = {D. Le Bolloc'h and V. L. R. Jacques and N. Kirova and J. Dumas and S. Ravy and J. Marcus and F. Livet},
  journal= {arXiv preprint arXiv:0711.4227},
  year   = {2025}
}

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4 pages, 3 figures Typos added, references removed

Observation of correlations up to the micrometer scale in sliding charge-density waves

Abstract

Keywords

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