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arXiv · 1402.3397

Magnetic ordering of three-component ultracold fermionic mixtures in optical lattices

Andrii Sotnikov·Walter Hofstetter
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Abstract

We study finite-temperature magnetic phases of three-component mixtures of ultracold fermions with repulsive interactions in optical lattices with simple cubic or square geometry by means of dynamical mean-field theory (DMFT). We focus on the case of one particle per site (1/3 band filling) at moderate interaction strength, where we observe a sequence of thermal phase transitions into two- and three-sublattice ordered states by means of the unrestricted real-space generalization of DMFT. From our quantitative analysis we conclude that long-range ordering in three-component mixtures should be observable at comparable temperatures as in two-component mixtures.

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Andrii Sotnikov, Walter Hofstetter. 2014-06-03. Magnetic ordering of three-component ultracold fermionic mixtures in optical lattices. https://doi.org/10.1103/physreva.89.063601

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