Beyond Baby Skyrmions: principle chiral model in noncollinear magnets

ORAL

Abstract

We discuss noncollinear magnetic phenomena whose local order parameter is characterized by more than one spin vector. By focusing on the simple cases of 2D triangular and 3D pyrochlore lattices, we demonstrate that their low-energy theories can be described by a one-parametric class of sigma models continuously interpolating between the classical Heisenberg model and the principal chiral model. A natural consequence of our derivation is that stable Skyrmion of type π3(SO(3)) can be generically induced in noncollinear magnets.

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Presenters

  • Zhentao Wang

    Department of Physics and Astronomy, The University of Tennessee

Authors

  • Cristian Batista

    Department of Physics & Astronomy, University of Tennessee, Knoxville, TN 37996, USA, Department of Physics and Astronomy, The University of Tennessee, University of Tennessee, Department of Physics and Astronomy, University of Tennessee, Department of Physics, University of Tennessee

  • Mikhail A Shifman

    William I. Fine Theoretical Physics Institute, University of Minnesota

  • Zhentao Wang

    Department of Physics and Astronomy, The University of Tennessee

  • Shang-Shun Zhang

    Department of Physics and Astronomy, The University of Tennessee, University of Tennessee