Twist-induced magnon Landau levels in honeycomb magnets

Abstract

Lattice deformation resulting from elastic strain is known to spatially modulate the wave function overlap of the atoms on the lattice and can drastically alter the properties of the quasiparticles. Here we elaborate that a twist lattice deformation in two-dimensional honeycomb quantum magnet nanoribbons is equivalent to an elastic gauge field giving rise to magnon Landau quantization. When the ground state is ferromagnetic, dispersive Dirac-Landau levels are induced in the center of magnon bands, while for antiferromagnetic nanoribbons, the twist results in dispersive equidistant Landau levels at the top of magnon bands. The dispersions for both types of Landau levels are derived in the framework of the band theory.

arXiv comment6 pages, 5 figures

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Cited by in corpus (10)

• Strain-induced pseudo-magnetic field in $\alpha -{\mathcal{T}}_3$ lattice
• Analytic solution to pseudo-Landau levels in strongly bent graphene nanoribbons
• Magnon Landau levels in the strained antiferromagnetic honeycomb nanoribbons
• Quantum Monte Carlo study of honeycomb antiferromagnets under a triaxial strain
• Acousto-magnonic spin Hall effect in honeycomb antiferromagnets
• Time-dependent strain-tuning topological magnon phase transition
• Pseudo Landau levels, negative strain resistivity, and enhanced thermopower in twisted graphene nanoribbons
• Pseudo-magnetic fields in square lattices
• Bose-Einstein condensate of Dirac magnons: Pumping and collective modes
• Transport of Dirac magnons driven by gauge fields