Phys. Rev. Lett. Phys. Rev. B
- A Koga, N Kawakami, +9 authors N Suga
- Phys. Rev. Lett. Phys. Rev. B
- 2004
Abstract
We apply the slave-boson approach of Kotliar and Ruckenstein to the two-band Hubbard model with an Ising like Hund’s rule coupling and bands of different widths. On the mean-field level of this approach we investigate the Mott transition and observe both separate and joint transitions of the two bands depending on the choice of the interand intraorbital… (More)