Topological properties of multilayer magnon insulators

Abstract

Two-dimensional magnetic insulators can be promising hosts for topological magnons. In this study, we show that ABC-stacked honeycomb lattice multilayers with alternating Dzyaloshinskii-Moriya interaction (DMI) reveal a rich topological magnon phase diagram. Based on our bandstructure and Berry curvature calculations, we demonstrate jumps in the thermal Hall behavior that corroborate with topological phase transitions triggered by adjusting the DMI and interlayer coupling. We connect the phase diagram of generic multilayers to a bilayer and a trilayer system. We find an even-odd effect amongst the multilayers where the even layers show no jump in thermal Hall conductivity, but the odd layers do. We also observe the presence of topological proximity effect in our trilayer. Our results offer new schemes to manipulate Chern numbers and their measurable effects in topological magnonic systems.

arXiv comment11 pages, 7 figures

References in corpus (39)

• Topological Insulators
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Gate-tunable Room-temperature Ferromagnetism in Two-dimensional Fe${}_3$GeTe${}_2$
• Spin Caloritronics
• Magnetic 2D materials and heterostructures
• Topological Insulator Materials
• Spin Seebeck insulator
• Controlling magnetism in 2D CrI3 by electrostatic doping
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Quantum Anomalous Hall Effect in Hg${}_{1-y}$Mn${}_y$Te Quantum Wells
• Observation of the Magnon Hall Effect
• Switching 2D Magnetic States via Pressure Tuning of Layer Stacking
• Pressure-controlled interlayer magnetism in atomically thin CrI3
• Probing magnetism in 2D materials at the nanoscale with single spin microscopy
• Crystal and Magnetic Structures in Layered, Transition Metal Dihalides and Trihalides
• Theoretical prediction of rotating magnon wavepacket in ferromagnets
• Topological Magnon Insulator in Insulating Ferromagnet
• Topological spin excitations in honeycomb ferromagnet CrI${}_3$
• Rotational motion of magnon and thermal Hall effect
• A Realization of the Haldane-Kane-Mele Model in a System of Localized Spins
• Hybrid nanodiamond-YIG systems for efficient quantum information processing and nanoscale sensing
• Magnonic topological insulators in antiferromagnets
• Topological honeycomb magnon Hall effect: A calculation of thermal Hall conductivity of magnetic spin excitations
• Magnonic Weyl semimetal in pyrochlore ferromagnets
• beta-Cu2V2O7: a spin-1/2 honeycomb lattice system
• Thermal Hall effect and topological edge states in a square lattice antiferromagnet
• Bulk and edge spin transport in topological magnon insulators
• Chiral anomaly of Weyl magnons in stacked honeycomb ferromagnets
• Magnon Hall effect in AB-stacked bilayer honeycomb quantum magnets
• Lattice dynamics and phase transition in CrI${}_3$ single crystals
• Chiral Hinge Magnons in Second-Order Topological Magnon Insulators
• Magnetic transitions in the topological magnon insulator Cu(1,3-bdc)
• Chiral topological insulator of magnons
• Granular Superconductor in a honeycomb lattice as a realization of Bosonic Dirac Material
• Pumping of magnons in a Dzyaloshinskii-Moriya ferromagnet
• Low-temperature monoclinic layer stacking in atomically thin CrI${}_3$ crystals
• Einstein-de Haas Effect of Topological Magnons
• Topological phase transition induced by magnetic proximity effect in two dimensions