Abstract
We investigate the phase diagram of the spin-orbit-coupled three orbital Hubbard model at arbitrary filling by means of dynamical mean-field theory combined with the continuous-time quantum Monte Carlo method. We find that the spin-freezing crossover occurring in the metallic phase of the nonrelativistic multiorbital Hubbard model can be generalized to a -freezing crossover, with , in the spin-orbit-coupled case. In the -frozen regime the correlated electrons exhibit a nontrivial flavor selectivity and energy dependence. Furthermore, in the regions near and the metallic states are qualitatively different from each other, which reflects the atomic Hund’s third rule. Finally, we explore the appearance of magnetic order from exciton condensation at and discuss the relevance of our results for real materials.
- Received 18 July 2016
DOI:https://doi.org/10.1103/PhysRevLett.118.086401
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