Magnetic Kondo regimes in a frustrated half-filled trimer

  title={Magnetic Kondo regimes in a frustrated half-filled trimer},
  author={K. P. W'ojcik and I. Weymann and Johann Kroha},
  journal={arXiv: Strongly Correlated Electrons},
We analyze theoretically the phase diagram of a triangular triple quantum dot with strong onsite repulsion coupled to ferromagnetic leads. This model includes the competition of magnetic ordering of local or itinerant magnetic moments, geometric frustration and Kondo screening. We identify all the phases resulting from this competition. We find that three Kondo phases -- the conventional one, the two-stage underscreened one, and the one resulting from the ferromagnetic Kondo effect -- can be… Expand

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