Volume 61, Number 1, January 2003
|Page(s)||122 - 128|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 January 2003|
An infrared study of the Josephson vortex state in high- cuprates
Department of Physics,
University of California at San Diego La Jolla, CA 92093, USA
2 Central Research Institute of Electric Power Industry - Tokyo, Japan
3 National High Magnetic Field Laboratory - Tallahassee, FL 3231, USA
Accepted: 4 October 2002
We report the results of the c-axis infrared spectroscopy of x in high magnetic field oriented parallel to the planes. A significant suppression of the superfluid density with magnetic field 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.
PACS: 74.72.Dn – -based cuprates / 74.25.Gz – Optical properties / 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects
© EDP Sciences, 2003
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