title: Electromagnetic response of static and fluctuating stripes in cuprate superconductors.
abstract: Using infrared spectroscopy, we found that changes in the in-plane charge dynamics attributable to static stripe order in La(1.275)Nd(0.6)Sr(0.125)CuO(4) or superconductivity in La(1.875)Sr(0.125)CuO(4) are confined to energies smaller than 100 cm(-1). An absorption peak in the low- omega conductivity of the Nd-doped compound is suggestive of localization effects due to the reduced dimensionality of static charge stripes. Neither superconductivity nor static stripe ordering has a noticeable effect on the depression of the scattering rate at omega<1000 cm(-1) characteristic of the pseudogap state in other classes of moderately doped cuprates.
authors.affiliation: Department of Physics, University of California at San Diego, La Jolla, California 92093-0319, USA. dumm@pi1.physik.uni-stuttgart.de
authors.forename: M
authors.initials: M
authors.lastname: Dumm
authors.forename: D N
authors.initials: DN
authors.lastname: Basov
authors.forename: Seiki
authors.initials: S
authors.lastname: Komiya
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Abe
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Ando