Magnetic phases of mass- and population-imbalanced ultracold fermionic mixtures in optical lattices

  title={Magnetic phases of mass- and population-imbalanced ultracold fermionic mixtures in optical lattices},
  author={Andrii Sotnikov and Michiel Snoek and Walter Hofstetter},
  journal={Physical Review A},
We study magnetic phases of two-component mixtures of ultracold fermions with repulsive interactions in optical lattices in the presence of both hopping and population imbalance by means of dynamical mean-field theory (DMFT). It is shown that these mixtures can have easy-axis antiferromagnetic, ferrimagnetic, charge-density wave, and canted-antiferromagnetic order or be unordered depending on parameters of the system. We study the resulting phase diagram in detail and investigate the stability… 

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