Universal subgap optical conductivity in quasi-one-dimensional Peierls systems
- 13 December 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 71 (24) , 4015-4018
- https://doi.org/10.1103/physrevlett.71.4015
Abstract
Quasi-one-dimensional Peierls systems with quantum and thermal lattice fluctuations can be modeled by a Dirac-type equation with a Gaussian-correlated off-diagonal disorder. A powerful new method gives the exact disorder-averaged Green function used to compute the optical conductivity. The strong subgap tail of the conductivity has a universal scaling form. The frequency and temperature dependence of the calculated spectrum agrees with experiments on KCP(Br) and trans-polyacetylene.Keywords
All Related Versions
This publication has 15 references indexed in Scilit:
- Evidence for modification of the electronic density of states by zero-point lattice motion in one dimension: Luminescence and resonance Raman studies of anMXsolidPhysical Review Letters, 1993
- Effect of Lattice Zero-Point Motion on Electronic Properties of the Peierls-Fröhlich StatePhysical Review Letters, 1992
- On the Density of States of a Disordered Peierls‐Fröhlich ChainPhysica Status Solidi (b), 1990
- Optical properties of quinolinium ditetracyanoquinodimethanide [Qn(TCNQ] and (N-methylphenazinium(phenazine(tetracyanoquinodimethanide) [(NMP(Phen(TCNQ)]Physical Review B, 1989
- Anisotropy of the optical constants of pure and metallic polyacetylenePhysical Review B, 1988
- The dynamics of charge-density wavesReviews of Modern Physics, 1988
- Solitons in conducting polymersReviews of Modern Physics, 1988
- Quantum field-theoretical methods in transport theory of metalsReviews of Modern Physics, 1986
- Continuum model for solitons in polyacetylenePhysical Review B, 1980
- New Structural Findings from a Neutron-Diffraction Study of One-Dimensional Pt ·3OPhysical Review Letters, 1974