On the universal optical conductivity and single-particle relaxation in cuprates

Preprint

14 July 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0005330

Abstract

The origin of the universal optical conductivity form sigma(omega) ~ (1-e^(omega/T))/omega established in numerical model studies of doped antiferromagnets and consistent with experiments on cuprates near optimal doping is discussed. It is shown that such a behaviour appears quite generally when the single-particle excitations are overdamped and their relaxation follows the marginal Fermi liquid concept. Relation to recent ARPES experiments is also discussed.

Keywords

UNIVERSAL OPTICAL CONDUCTIVITY
PARTICLE RELAXATION
ANTIFERROMAGNETS
SINGLE PARTICLE
CUPRATES
DOPING

All Related Versions

Version 1, 2000-05-19, ArXiv
Version 2, 2000-07-14, ArXiv
Published version: Europhysics Letters, 53 (2), 228.

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