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low-energy effects of two dimensional Dirac semimetals with interactions.

ORAL

Abstract

We discuss the effects of interactions and incommensuration on the low-energy properties of two dimensional Dirac semimetals. We focus on charge neutrality and in a model that possesses a magic-angle (i.e. vanishing Dirac velocity) and study the evolution of the interaction induced magnetic transition in the presence of a magic-angle. The model is investigated analytically using perturbation theory and a mean field description as well as numerically using Hartree-Fock and an auxiliary field quantum Monte Carlo approach.

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Presenters

  • Jinjing Yi

    Rutgers University New Brunswick

Authors

  • Jinjing Yi

    Rutgers University New Brunswick

  • Jedediah H Pixley

    Rutgers University, New Brunswick, Rutgers University, Flatiron Institute, Department of Physics and Astronomy, Center for Materials Theory, Rutgers University, Piscataway, NJ, 08854, USA, Rutgers University

  • Shiwei Zhang

    Flatiron Institute, Simons Foundation, Simons Foundation, Center for Computational Quantum Physics, Flatiron Institute, Center for Computational Quantum Physics, Flatiron Institute, New York, NY 10010, USA, Flatiron Institute

  • Zhi-Yu Xiao

    Center for Computational Quantum Physics, Flatiron Institute, William & Mary

  • Daniele Guerci

    Center for Computational Quantum Physics, Flatiron Institute

  • Elio J König

    Max-Planck-Institute for Solid State Research