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Mott transitions in the multi-orbital systems
Akihisa Koga, Norio Kawakami, T. M. Rice +1
We investigate the Mott transitions in the two-orbital Hubbard model with different bandwidths. By combining dynamical mean field theory with the exact diagonalization, we discuss…
Optical Conductivity of Ortho-II YBaCuO
E. Bascones, T. M. Rice, A. O. Shorikov +1
The Ortho-II phase of YBaCuO is characterized by a periodic alternation of empty Cu and filled Cu-O b-axis doubling the unit cell in the a direction. The extra oxygen…
Theory of the different photoemission spectra of metallic and insulating C60 compounds
Samuel Wehrli, T. M. Rice, Manfred Sigrist
Metallic K3C60 shows pronounced structure and a sharp Fermi edge in integrated photoemission spectra (PES) while the insulating K4C60 and K6C60 phases display only a broad structur…
Orbital-selective Mott transitions in the degenerate Hubbard model
Akihisa Koga, Norio Kawakami, T. M. Rice +1
We investigate the Mott transitions in two-band Hubbard models with different bandwidths. Applying dynamical mean field theory, we discuss the stability of itinerant quasi-particle…