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07-11E

07-11E


By icmp_admin - Posted on 08 February 2012

UDC: 
544.225.32, 538.935
PACS: 
71.10.Fd, 71.45.Lr, 72.15.Eb

Optical and dc transport properties of a strongly correlated charge density wave system: exact solution in the ordered phase of the spinless Falicov-Kimball model with dynamical mean-field theory

O.P. Matveev
A.M. Shvaika
J.K. Freericks

We derive the dynamical mean-field theory equations for transport in an ordered charge-density-wave phase on a bipartite lattice. The formalism is applied to the spinless Falicov-Kimball model on a hypercubic lattice at half filling. We determine the many-body density of states, the dc charge and heat conductivities, and the optical conductivity. The density of states and the transport coefficients show anomalous behavior due to the development of thermally activated subgap states. We see that the total optical spectral weight (average kinetic energy) in the ordered phase either decreases or increases depending on the strength of the interactions.

Year: 
2007
Pages: 
25
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