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 language | English |
---|---|
Article number | 167001 |
Pages (from-to) | - |
Journal | Physical review letters |
Volume | 94 |
Issue number | 16 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- IR-55101
- METIS-230129