Phase-sensitive order parameter symmetry test experiments utilizing Nd2-xCexCuO4-y/Nb zigzag junctions

A. Ariando, D. Darminto, D. Darminto, H.J.H. Smilde, V. Leca, David H.A. Blank, Horst Rogalla, Johannes W.M. Hilgenkamp

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52 Citations (Scopus)

Abstract

Phase-sensitive order parameter symmetry test experiments are presented on the electron-doped high-Tc 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-Tc superconductor Nb via an 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=4.2 K. Both compounds were also investigated at T=1.6 K, presenting no indications for a change to a predominant s-wave symmetry with decreasing temperature.
Original languageEnglish
Article number167001
Pages (from-to)-
JournalPhysical review letters
Volume94
Issue number16
DOIs
Publication statusPublished - 2005

Keywords

  • IR-55101
  • METIS-230129

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