title: Nodal order parameter in electron-doped Pr(2-x)CexCuO(4-delta) superconducting films.
abstract: The London penetration depth, lambda(ab)(T), is reported for thin films of the electron-doped superconductor Pr(2-x)Ce(x)CuO(4-delta) with varying Ce concentration, x=0.13, 0.15, and 0.17. Measurements down to 0.35 K were carried out using a tunnel-diode oscillator with excitation fields applied both perpendicular and parallel to the conducting planes. Films at all three doping levels exhibited power law behavior indicative of d-wave pairing with impurity scattering. These results are fully consistent with previous measurements on single crystals.
authors.affiliation: Department of Physics & Astronomy and NanoCenter, University of South Carolina, 712 Main Street, Columbia, South Carolina 29208, USA.
authors.forename: A
authors.initials: A
authors.lastname: Snezhko
authors.forename: R
authors.initials: R
authors.lastname: Prozorov
authors.forename: D D
authors.initials: DD
authors.lastname: Lawrie
authors.forename: R W
authors.initials: RW
authors.lastname: Giannetta
authors.forename: J
authors.initials: J
authors.lastname: Gauthier
authors.forename: J
authors.initials: J
authors.lastname: Renaud
authors.forename: P
authors.initials: P
authors.lastname: Fournier