title: Phase-sensitive order parameter symmetry test experiments utilizing Nd(2-x)Ce(x)CuO(4-y)/Nb zigzag junctions.
abstract: Phase-sensitive order parameter symmetry test experiments are presented on the electron-doped high-T(c) cuprate Nd(2-x)Ce(x)CuO(4-y). These experiments have been conducted using zigzag-shaped thin film Josephson structures, in which the Nd(2-x)Ce(x)CuO(4-y) is connected to the low-T(c) superconductor Nb via an Au barrier layer. For the optimally doped as well as for the overdoped Nd(2-x)Ce(x)CuO(4-y), a clear predominant d(x2-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.
authors.affiliation: Technology and MESA+ Research Institute [corrected] University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.lastname: Ariando
authors.forename: D
authors.initials: D
authors.lastname: Darminto
authors.forename: H-J H
authors.initials: HJ
authors.lastname: Smilde
authors.forename: V
authors.initials: V
authors.lastname: Leca
authors.forename: D H A
authors.initials: DH
authors.lastname: Blank
authors.forename: H
authors.initials: H
authors.lastname: Rogalla
authors.forename: H
authors.initials: H
authors.lastname: Hilgenkamp