Dirac surface states in magnonic analogs of topological crystalline insulators

Abstract

We propose magnonic analogs of topological crystalline insulators which possess Dirac surface states protected by the combined symmetry of time-reversal and half translation. Constructing models of the topological magnon systems, we demonstrate that the energy current flows through the systems in response to an electric field, owing to the Dirac surface states with the spin-momentum locking. We also propose a realization of the magnonic analogs of topological crystalline insulators in a magnetic compound CrI${}_3$ with a monoclinic structure.

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Cited by in corpus (7)

• Nonlinear magnon spin Nernst effect in antiferromagnets and strain-tunable pure spin current
• Magnon corner states in twisted bilayer honeycomb magnets
• Tunable Magnonic Chern Bands and Chiral Spin Currents in Magnetic Multilayers
• Identifying, and constructing, complex magnon band topology
• Higher-order Topological Phases of Magnons in van der Waals Honeycomb Ferromagnets
• Temperature-Induced Magnonic Chern Insulator in Collinear Antiferromagnets
• Spin interactions and topological magnonics in chromium trihalide CrClBrI