Optical properties of molecular conductors: One-dimensional systems with twofold-commensurate charge-density waves

1987 ◽  
Vol 36 (15) ◽  
pp. 7795-7804 ◽  
Author(s):  
R. Bozio ◽  
M. Meneghetti ◽  
C. Pecile
Keyword(s):  
Optical Properties ◽  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves ◽  
Molecular Conductors ◽  
One Dimensional

Case studies of molecular disorder

2005 ◽  
Vol 220 (12) ◽  
Author(s):  
Sylvain Ravy ◽  
Pascale Launois ◽  
Roger Moret ◽  
Jean-Paul Pouget
Keyword(s):  
Carbon Nanotubes ◽  
Charge Density ◽  
Case Studies ◽  
Charge Density Waves ◽  
Random Packing ◽  
Density Waves ◽  
Orientational Disorder ◽  
Molecular Conductors ◽  
One Dimensional

AbstractIn this review we present three representative examples of molecular disorder: substitution disorder for carbon nanotubes in zeolite, coupling between substitution disorder and displacements through the pinning of charge-density waves in one-dimensional molecular conductors, and the combination of random packing with orientational disorder in the C

Theory of pseudogaps in charge density waves in application to photo electron spectroscopy

2002 ◽  
Vol 12 (9) ◽  
pp. 73-73
Author(s):  
S. I. Matveenko ◽  
S. Brazovskii
Keyword(s):  
Charge Density ◽  
Adiabatic Approximation ◽  
Free Particle ◽  
Charge Density Waves ◽  
Photon Absorption ◽  
Electronic Excitations ◽  
Dimensional Electron ◽  
Density Waves ◽  
One Dimensional ◽  
Exponential Decrease

For a one-dimensional electron-phonon system we consider the photon absorption involving electronic excitations within the pseudogap energy range. Within the adiabatic approximation for the electron - phonon interactions these processes are described by ronlinear configurations of an instanton type. We calculate the subgap absorption as it can be observed by means of photo electron or tunneling spectroscopies. In details we consider systems with gapless modes: 1D semiconductors with acoustic phonons and incommensurate charge density waves. We found that below the free particle edge the pseudogap starts with the exponential decrease of transition rates changing to a power law deeply within the pseudogap, near the absolute edge.

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