Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-08-25
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
10.1103/PhysRevB.65.064523
We compute the electrical and thermal conductivities and Hall conductivities of the $d$-density wave (DDW) state in the low-temperature impurity-scattering-dominated regime for low-dopings, at which they are dominated by nodal quasiparticles. We show that the longitudinal conductivity in this limit in the DDW state is not Drude-like. However, the thermal conductivty is Drude-like; this is a reflection of the discrepancy between electrical and thermal transport at finite frequency in the DDW state. An extreme example of this occurs in the $\mu=0$, $\tau\to\infty$ limit, where there is a strong violation of the Wiedemann-Franz law: ${\kappa_{xx}}/{\sigma_{xx}} \propto {T^2}$ at $\omega=0$ and ${\kappa_{xx}}/{\sigma_{xx}}=0$ at finite frequency. The DDW electrical and thermal Hall conductivities are linear in the magnetic field, $B$, for weak fields. The formation of Landau levels at the nodes leads to the quantization of these Hall conductivities at high fields. In all of these ways, the quasiparticles of the DDW state differ from those of the $d_{{x^2}-{y^2}}$ superconducting (DSC) state.
Nayak Chetan
Yang Xiao
No associations
LandOfFree
Electrical and Thermal Transport by Nodal Quasiparticles in the DDW State does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Electrical and Thermal Transport by Nodal Quasiparticles in the DDW State, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical and Thermal Transport by Nodal Quasiparticles in the DDW State will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-151700