Evidence for Dynamic Charge Stripes in the Phonons of Optimally Doped YBCO

L. Pintschovius; Y. Endoh; D. Reznik; H. Hiraka; J. M. Tranquada; W. Reichardt; H. Uchiyama; T. Masui; S. Tajima

Evidence for Dynamic Charge Stripes in the Phonons of Optimally Doped YBCO

Strongly Correlated Electrons 2007-05-23 v1

Authors: L. Pintschovius , Y. Endoh , D. Reznik , H. Hiraka , J. M. Tranquada , W. Reichardt , H. Uchiyama , T. Masui , S. Tajima

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Abstract

Inelastic neutron scattering investigations on optimally doped YBCO revealed a very pronounced temperature dependence in the Cu-O in-plane bond-stretching vibrations along the (010) direction: a shift of spectral weight by at least 10 meV has been observed in a narrow range of wave vectors halfway to the zone boundary. The temperature evolution starts at about 200 K, well above the superconducting transition temperature. The displacement pattern of the anomalous phonons indicates a dynamic one-dimensional charge-density modulation within the planes, but excludes a direct contribution from the Cu-O chains.

Keywords

YBCO phonons charge density waves inelastic neutron scattering dynamic charge stripes

Cite

@article{arxiv.cond-mat/0308357,
  title  = {Evidence for Dynamic Charge Stripes in the Phonons of Optimally Doped YBCO},
  author = {L. Pintschovius and Y. Endoh and D. Reznik and H. Hiraka and J. M. Tranquada and W. Reichardt and H. Uchiyama and T. Masui and S. Tajima},
  journal= {arXiv preprint arXiv:cond-mat/0308357},
  year   = {2007}
}

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5 pages, 5 figures

Evidence for Dynamic Charge Stripes in the Phonons of Optimally Doped YBCO

Abstract

Keywords

Cite

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