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Comment on: "Orbital-selective Mott transitions in the anisotropic two-band Hubbard model at finite temperatures" by C. Knecht, N. Bluemer, and P. G. J. van Dongen, cond-mat/0505106
A. Liebsch
A detailed comparison of QMC/DMFT results for the non-isotropic two-band Hubbard model by Liebsch [Phys. Rev. B 70, 165103 (2004)] and C. Knecht, N. Bluemer, and P. G. J. van Donge…
Coulomb Correlations and Orbital Polarization in the Metal Insulator Transition of VO_2
A. Liebsch, H. Ishida, G. Bihlmayer
The quasi-particle spectra in the metallic rutile and insulating monoclinic phases of VO are shown to be dominated by local Coulomb interactions. In the rutile phase the small…
Mott transition in multi-orbital systems
A. Liebsch
Metal insulator transitions driven by local Coulomb interactions are among the most fascinating phenomena in condensed matter physics. They occur in a large variety of transition m…
Surface versus bulk Mott transition in CaLaVO
A. Liebsch
The Mott insulator LaVO is known to become metallic if La is replaced by small concentrations of Ca. Since surface quasi-particle spectra of various perovskites are more strong…