Eur. Phys. J. B 36, 327-334 (2003)
https://doi.org/10.1140/epjb/e2003-00351-8

Carrier relaxation time divergence in single and double layer cuprates

¹ Physics Department, University of Wisconsin- Madison, Madison, WI 53706, USA
² Los Alamos National Laboratory, Los Alamos, NM 87545, USA
³ Physics Department, Vanderbilt University, Nashville, TN 37235, USA
⁴ Applied Sciences Department, College of William and Mary, Williamsburg, VA 23187, USA
⁵ Institute of Physics, Polish Academy of Sciences, 02668 Warszawa, Poland
⁶ Department of Electrical and Computer Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, USA
⁷ Physics Department, Pennsylvania State University, University Park, PA 16802 USA
⁸ Departement de Physique Appliquée, École Polytechnique Fédérale Lausanne, 1015 Lausanne, Switzerland
⁹ Institut für Physik, Humboldt-Universität, Invalidenstrasse 110, 10115 Berlin, Germany
¹⁰ Department of Physics, University of Wisconsin Milwaukee, Milwaukee WI 53211, USA
¹¹ Physics Department, University of Wisconsin- Madison, Madison, WI 53706, USA Los Alamos National Laboratory, Los Alamos, NM 87545, USA Physics Department, Vanderbilt University, Nashville, TN 37235, USA Applied Sciences Department, College of William and Mary, Williamsburg, VA 23187, USA Institute of Physics, Polish Academy of Sciences, 02668 Warszawa, Poland Department of Electrical and Computer Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, USA Physics Department, Pennsylvania State University, University Park, PA 16802 USA Departement de Physique Appliquée, École Polytechnique Fédérale Lausanne, 1015 Lausanne, Switzerland Institut für Physik, Humboldt-Universität, Invalidenstrasse 110, 10115 Berlin, Germany Department of Physics, University of Wisconsin Milwaukee, Milwaukee WI 53211, USA Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA

Corresponding author: ^a onellion@wisc.edu

Received: 30 June 2003
Published online: 23 December 2003

Abstract

We report the transient optical pump-probe reflectivity measurements on single and double layer cuprate single crystals and thin films of ten different stoichiometries. We find that with sufficiently low fluence the relaxation time ( of all samples exhibits a power law divergence with temperature . Further, the divergence has an onset temperature above the superconducting transition temperature for all superconducting samples. Possible causes of this divergence are discussed.