Sharp resonant multiplet in femto-second optical pair-breaking spectroscopy of YBa2Cu3O7-delta

Eric Li; J. J. Li; R. P. Sharma; S. B. Ogale; W. L. Cao; Y. G. Zhao; C. H. Lee; T. Venkatesan

Sharp resonant multiplet in femto-second optical pair-breaking spectroscopy of YBa2Cu3O7-delta

Superconductivity 2007-05-23 v1 Strongly Correlated Electrons

Authors: Eric Li , J. J. Li , R. P. Sharma , S. B. Ogale , W. L. Cao , Y. G. Zhao , C. H. Lee , T. Venkatesan

Abstract

Femto-second optical pair breaking spectroscopy is performed on optimally doped YBa2Cu3O7-delta near 1.5eV. Dramatic photon energy dependence with a sharp triplet fine structure is seen for the first time. The peak separations are attributable to the reported phonon and magnetic excitations in the system. The power dependence is non-linear with differing exponents for the three contributions. These results imply the presence of insulating antiferromagnetic domains in the superconducting state of YBCO over sub-picosecond time scale, and thereby favor an electronic phase separation picture.

Keywords

femtosecond optical spectroscopy pair-breaking YBCO phonon excitations magnetic excitations

Cite

@article{arxiv.cond-mat/0103046,
  title  = {Sharp resonant multiplet in femto-second optical pair-breaking spectroscopy of YBa2Cu3O7-delta},
  author = {Eric Li and J. J. Li and R. P. Sharma and S. B. Ogale and W. L. Cao and Y. G. Zhao and C. H. Lee and T. Venkatesan},
  journal= {arXiv preprint arXiv:cond-mat/0103046},
  year   = {2007}
}

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12 pages, 3 figures

Sharp resonant multiplet in femto-second optical pair-breaking spectroscopy of YBa2Cu3O7-delta

Abstract

Keywords

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