162 citations · 265 across the 8 of their papers we have counts for
8 papers
Landau Theory of the Finite Temperature Mott Transition
G. Kotliar, E. Lange, M. J. Rozenberg
In the context of the dynamical mean-field theory of the Hubbard model, we identify microscopically an order parameter for the finite temperature Mott endpoint. We derive a Landau…
Two-scale analysis of the SU(N) Kondo Model
D. Villani, E. Lange, A. Avella +1
We show how to resolve coherent low-energy features embedded in a broad high-energy background by use of a fully self-consistent calculation for composite particle operators. The m…
Impact of magnetic frustration on the Mott transition within a slave-boson mean-field theory
Imseok Yang, Ekkehard Lange, Gabriel Kotliar
We investigate the paramagnetic-metal-to-antiferromagnetic-metal and antiferromagnetic-metal-to- antiferromagnetic-insulator transitions using a slave-boson mean-field theory. To t…
Magnetooptical sum rules close to the Mott transition
Ekkehard Lange, Gabriel Kotliar
We derive new sum rules for the real and imaginary parts of the frequency-dependent Hall constant and Hall conductivity. As an example, we discuss their relevance to the doped Mott…
Renormalized vs unrenormalized perturbation-theoretical approaches to the Mott transition
Ekkehard Lange
I employ an exactly soluble toy model to investigate why unrenormalized perturbation theory works better than fully self-consistent approaches in describing the correlation-driven…
Magnetotransport in the doped Mott insulator
Ekkehard Lange, Gabriel Kotliar
We investigate the Hall effect and the magnetoresistance of strongly correlated electron systems using the dynamical mean-field theory. We treat the low- and high-temperature limit…