title: Light-induced superconductivity in a stripe-ordered cuprate.
abstract: One of the most intriguing features of some high-temperature cuprate superconductors is the interplay between one-dimensional "striped" spin order and charge order, and superconductivity. We used mid-infrared femtosecond pulses to transform one such stripe-ordered compound, nonsuperconducting La(1.675)Eu(0.2)Sr(0.125)CuO(4), into a transient three-dimensional superconductor. The emergence of coherent interlayer transport was evidenced by the prompt appearance of a Josephson plasma resonance in the c-axis optical properties. An upper limit for the time scale needed to form the superconducting phase is estimated to be 1 to 2 picoseconds, which is significantly faster than expected. This places stringent new constraints on our understanding of stripe order and its relation to superconductivity.
authors.affiliation: Max Planck Research Department for Structural Dynamics, University of Hamburg-Centre for Free Electron Laser Science-Hamburg, Germany. daniele.fausti@mpsd.cfel.de
authors.forename: D
authors.initials: D
authors.lastname: Fausti
authors.forename: R I
authors.initials: RI
authors.lastname: Tobey
authors.forename: N
authors.initials: N
authors.lastname: Dean
authors.forename: S
authors.initials: S
authors.lastname: Kaiser
authors.forename: A
authors.initials: A
authors.lastname: Dienst
authors.forename: M C
authors.initials: MC
authors.lastname: Hoffmann
authors.forename: S
authors.initials: S
authors.lastname: Pyon
authors.forename: T
authors.initials: T
authors.lastname: Takayama
authors.forename: H
authors.initials: H
authors.lastname: Takagi
authors.forename: A
authors.initials: A
authors.lastname: Cavalleri