title: Low-frequency crossover of the fractional power-Law conductivity in SrRuO3
abstract: We combine the results of terahertz time-domain spectroscopy with far-infrared transmission and reflectivity to obtain the conductivity of SrRuO3 over an unprecedented continuous range in frequency, allowing us to characterize the approach to zero frequency as a function of temperature. We show that the conductivity follows a simple phenomenological form, with an analytic structure fundamentally different from that predicted by the standard theory of metals.
authors: Department of Physics, University of California at Berkeley, Berkeley, California 94720 and Materials Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
authors: JS
authors: Dodge
authors: CP
authors: Weber
authors: J
authors: Corson
authors: J
authors: Orenstein
authors: Z
authors: Schlesinger
authors: JW
authors: Reiner
authors: MR
authors: Beasley