Low-Frequency Crossover of the Fractional Power-Law Conductivity in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>SrRuO</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></math></span>

J. S. Dodge; C. P. Weber; J. Corson; J. Orenstein; Z. Schlesinger; J. W. Reiner; M. R. Beasley

doi:10.1103/PhysRevLett.85.4932

Low-Frequency Crossover of the Fractional Power-Law Conductivity in ${SrRuO}_{3}$

J. S. Dodge, C. P. Weber, J. Corson, J. Orenstein, Z. Schlesinger, J. W. Reiner, and M. R. Beasley

Phys. Rev. Lett. 85, 4932 – Published 4 December 2000

Abstract

We combine the results of terahertz time-domain spectroscopy with far-infrared transmission and reflectivity to obtain the conductivity of ${SrRuO}_{3}$ 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.

Received 19 June 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.4932

Authors & Affiliations

J. S. Dodge^1,2,*, C. P. Weber^1,2, J. Corson^1,2, J. Orenstein^1,2, Z. Schlesinger³, J. W. Reiner⁴, and M. R. Beasley⁴

¹Department of Physics, University of California at Berkeley, Berkeley, California 94720
²Materials Sciences Division, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720
³Department of Physics, University of California at Santa Cruz, Santa Cruz, California 95064
⁴Edward L. Ginzton Laboratories, Stanford University, Stanford, California 94305