861 citations
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- Centre National de la Recherche ScientifiqueFR26 papers
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9 papers · 1 filter
Correlation effects in total energy of transition metals and related properties
I. Di Marco, J. Minár, S. Chadov +3
We present an accurate implementation of total energy calculations into the local density approximation plus dynamical mean-field theory (LDA+DMFT) method. The electronic structure…
On the mechanism for orbital-ordering in KCuF3
E. Pavarini, E. Koch, A. I. Lichtenstein
The Mott insulating perovskite KCuF3 is considered the archetype of an orbitally-ordered system. By using the LDA+dynamical mean-field theory (DMFT) method, we investigate the mech…
First order Mott transition at zero temperature in two dimensions: Variational plaquette study
Matthias Balzer, Bumsoo Kyung, David Sénéchal +2
The nature of the metal-insulator Mott transition at zero temperature has been discussed for a number of years. Whether it occurs through a quantum critical point or through a firs…
Microwave photovoltage and photoresistance effects in ferromagnetic microstrips
N. Mecking, Y. S. Gui, C. -M. Hu
We investigate the dc electric response induced by ferromagnetic resonance in ferromagnetic Permalloy (Ni80Fe20) microstrips. The resulting magnetization precession alters the angl…
Mott transition in one dimension: Benchmarking dynamical cluster approaches
Matthias Balzer, Werner Hanke, Michael Potthoff
The variational cluster approach (VCA) is applied to the one-dimensional Hubbard model at zero temperature using clusters (chains) of up to ten sites with full diagonalization and…
Phase separation and competition of superconductivity and magnetism in the two-dimensional Hubbard model: From strong to weak coupling
M. Aichhorn, E. Arrigoni, M. Potthoff +1
Cooperation and competition between the antiferromagnetic, d-wave superconducting and Mott-insulating states are explored for the two-dimensional Hubbard model including nearest an…