Phase-sensitive order parameter symmetry test experiments utilizing Nd2-xCexCuO4-y/Nb zigzag junctions
Strongly Correlated Electrons
2009-11-11 v1 Superconductivity
Abstract
Phase-sensitive order parameter symmetry test experiments are presented on the electron-doped high-T_c cuprate Nd2-xCexCuO4-y. These experiments have been conducted using zigzag-shaped thin film Josephson structures, in which the Nd2-xCexCuO4-y is connected to the low-T_c superconductor Nb via a Au barrier layer. For the optimally doped as well as for the overdoped Nd2-xCexCuO4-y a clear predominant dx2-y2-wave behavior is observed at T=4.2K. Both compounds were also investigated at T=1.6K, presenting no indications for a change to a predominant s-wave symmetry with decreasing temperature.
Cite
@article{arxiv.cond-mat/0503429,
title = {Phase-sensitive order parameter symmetry test experiments utilizing Nd2-xCexCuO4-y/Nb zigzag junctions},
author = {Ariando and D. Darminto and H. -J. H. Smilde and V. Leca and D. H. A. Blank and H. Rogalla and H. Hilgenkamp},
journal= {arXiv preprint arXiv:cond-mat/0503429},
year = {2009}
}
Comments
Accepted for publication in Phys. Rev. Lett., 4 pages, 4 figures