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Glassiness and superconductivity in strongly Pr-doped YBa2Cu3O7-δ single crystals

V. SANDU1,* , P. GYAWALI2, T. KATUWAL2, C. C. ALMASAN2, B. J. TAYLOR3, M. B. MAPLE3

Affiliation

  1. National Institute of Materials Physics, Bucharest-Magurele, O77125 Romania
  2. Kent State University, Kent, OH-44242 USA
  3. University of California at San Diego, La Jolla, CA-92093, USA

Abstract

We present magnetization data on superconducting strongly Pr-doped YBa2Cu3O7-δ showing the existence of irreversibility at temperatures much higher than superconducting critical temperature and Neél temperatures for both planar Cu and Pr systems. A model in terms of cluster glass is proposed..

Keywords

Superconductivity, Glassiness, Pr-doped YBa2Cu3O7-δ.

Submitted at: Nov. 14, 2006
Accepted at: May 15, 2007

Citation

V. SANDU, P. GYAWALI, T. KATUWAL, C. C. ALMASAN, B. J. TAYLOR, M. B. MAPLE, Glassiness and superconductivity in strongly Pr-doped YBa2Cu3O7-δ single crystals, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 5, pp. 1277-1280 (2007)