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An Infrared study of the Josephson vortex state in high-Tc cuprates

Superconductivity 2009-11-07 v1

Abstract

We report the results of the c-axis infrared spectroscopy of La_{2-x} Sr_x CuO_4 in high magnetic field oriented parallel to the CuO_2 planes. A significant suppression of the superfluid density with magnetic field rho_s(H) is observed for both underdoped (x=0.125) and overdoped (x=0.17) samples. We show that the existing theoretical models of the Josephson vortex state fail to consistently describe the observed effects and discuss possible reasons for the discrepancies.

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Cite

@article{arxiv.cond-mat/0207687,
  title  = {An Infrared study of the Josephson vortex state in high-Tc cuprates},
  author = {S. V. Dordevic and Seiki Komiya and Yoichi Ando and Y. J. Wang and D. N. Basov},
  journal= {arXiv preprint arXiv:cond-mat/0207687},
  year   = {2009}
}