Imperfect nesting and transport properties in unconventional density waves

Abstract

We consider the effect of imperfect nesting in quasi-one dimensional unconventional density waves. The phase diagram is very close to those in a conventional DW. The linear and non-linear aspects of the electric conductivity are discussed. At T=0 the frequency dependent electric conductivity develops a small dip at low frequencies. The threshold electric field depends strongly on the imperfect nesting parameter, allowing us to describe the measured threshold electric field in the low temperature phase of the quasi-two dimensional organic conductor, alpha-(BEDT-TTF)_2KHg(SCN)_4 very well.

9 pages, 9 figures

References in corpus (4)

• Transport properties in the d-density wave state: Wiedemann-Franz law
• Threshold electric field in unconventional density waves
• The magnetic field dependence of the threshold electric field in unconventional charge density waves
• Impurity scattering in unconventional density waves

Cited by in corpus (8)

• Orbital quantization in the high magnetic field state of a charge-density-wave system
• Unconventional charge density wave in the organic conductor alpha-(BEDT-TTF)_2KHg(SCN)_4
• Interplay between the orbital quantization and Pauli effect in a charge-density-wave organic conductor
• Impurity effects in unconventional density waves in the unitary limit
• Impurity scattering in unconventional density waves: non-crossing approximation for arbitrary scattering rate
• Collective modes in unconventional density waves
• The pseudogap phase in (TaSe_4)_2I
• Gapped optical excitations from gapless phases: imperfect nesting in unconventional density waves