Journal
PHYSICAL REVIEW B
Volume 72, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.72.081103
Keywords
-
Ask authors/readers for more resources
The anisotropic degenerate two-orbital Hubbard model is studied within dynamical mean-field theory at low temperatures. High-precision calculations on the basis of a refined quantum Monte Carlo (QMC) method reveal that two distinct orbital-selective Mott transitions occur for a bandwidth ratio of 2, even in the absence of spin-flip contributions to the Hund exchange. The second transition-not seen in earlier studies using QMC, iterative perturbation theory, and exact diagonalization-is clearly exposed in a low-frequency analysis of the self-energy and in local spectra.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available