174 citations · 835 across the 42 of their papers we have counts for
4 papers · 1 filter
Effective mass at the surface of a Fermi liquid
M. Potthoff, W. Nolting
Using the dynamical mean-field theory, we calculate the effective electron mass in the Hubbard model on a semi-infinite lattice. At the surface the effective mass is strongly enhan…
Surface metal-insulator transition in the Hubbard model
M. Potthoff, W. Nolting
The correlation-driven metal-insulator (Mott) transition at a solid surface is studied within the Hubbard model for a semi-infinite lattice by means of the dynamical mean-field the…
Optimization of alloy-analogy-based approaches to the infinite-dimensional Hubbard model
M. Potthoff, T. Herrmann, W. Nolting
An analytical expression for the self-energy of the infinite-dimensional Hubbard model is proposed that interpolates between different exactly solvable limits. We profit by the com…
Ferromagnetism within the periodic Anderson model: A new approximation scheme
D. Meyer, W. Nolting, G. G. Reddy +1
We introduce a new approach to the periodic Anderson model (PAM) that allows a detailed investigation of the magnetic properties in the Kondo as well as the intermediate valence re…