corner
corner
APS » Journals » Phys. Rev. B » Volume 61 » Issue 22
< Previous Article | Next Article >

Phys. Rev. B 61, R14924–R14927 (2000)

Conductivity due to classical phase fluctuations in a model for high-Tc superconductors

Download: PDF (67 kB) Buy this article Export: BibTeX or EndNote (RIS)

S. Barabash and D. Stroud
Department of Physics, The Ohio State University, Columbus, Ohio 43210

I.-J. Hwang
IBM Storage Technology Division, San Jose, California 95193

Received 22 February 2000; published in the issue dated 1 June 2000

We consider the real part of the conductivity, σ1;αα(ω), arising from classical phase fluctuations in high-Tc superconductors. We show that ∫0∞σ1;ααdω≠0 below the superconducting transition temperature Tc, provided there is some quenched disorder in the system. Furthermore, for a fixed amount of quenched disorder, this integral at low temperatures is proportional to the zero-temperature superfluid density, in agreement with experiment. We calculate σ1;αα(ω) explicitly for a model of overdamped phase fluctuations.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.61.R14924
DOI:
10.1103/PhysRevB.61.R14924
PACS:
74.25.Nf, 74.40.+k, 74.62.Dh, 74.50.+r
 
< Previous Article | Next Article >