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

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

2002-07-29

arxiv.org/abs/cond-mat/0207687v1

Europhys.Lett., Vol.61, 122 (2003).

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1209/epl/i2003-00258-6

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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