Multicomponent magneto-orbital order and magneto-orbitons in monolayer VCl3
arXiv:2409.05056 · doi:10.1021/acs.nanolett.4c06400
Abstract
Van der Waals monolayers featuring magnetic states provide a fundamental building block for artificial quantum matter. Here, we establish the emergence of a multicomponent ground state featuring magneto-orbital excitations of the 3d2-transition metal trihalide VCl3 monolayer. We show that monolayer VCl3 realizes a ground state with simultaneous magnetic and orbital ordering using density functional theory. Using first-principles methods we derive an effective Hamiltonian with intertwined spin and orbital degree of freedom, which we demonstrate can be tuned by strain. We show that magneto-orbitons appear as the collective modes of this complex order, and arise from coupled orbiton magnon excitations due to the magneto-orbital coupling in the system. Our results establish VCl3 as a promising 2D material to observe emergent magneto-orbital excitations and provide a platform for multicomponent symmetry breaking.
7 pages, 3 figures
References in corpus (27)
- Magnetic 2D materials and heterostructures
- Ising-Type Magnetic Ordering in Atomically Thin FePS3
- Tunable Phase Boundaries and Ultra-Strong Coupling Superconductivity in Mirror Symmetric Magic-Angle Trilayer Graphene
- Signatures of Fractional Quantum Anomalous Hall States in Twisted MoTe2 Bilayer
- Evidence for a single-layer van der Waals multiferroic
- Observation of integer and fractional quantum anomalous Hall effects in twisted bilayer MoTe2
- VI3 - a new layered ferromagnetic semiconductor
- Spin-orbital quantum liquid on the honeycomb lattice
- Gate-tunable heavy fermions in a moiré Kondo lattice
- Emulating heavy fermions in twisted trilayer graphene
- Evidence of Noncollinear Spin Texture in Magnetic Moiré Superlattices
- Microscopic origin of multiferroic order in monolayer NiI
- Realistic Spin Model for Multiferroic NiI
- Atomic-scale visualization of multiferroicity in monolayer NiI
- Microscopic origin of magnetism in monolayer transition metal dihalides
- Moiré-driven multiferroic order in twisted CrCl, CrBr and CrI bilayers
- Large orbital magnetic moment in VI3
- SU(4) symmetry in twisted bilayer graphene - an itinerant perspective
- Quantum liquids of the S=3/2 Kitaev honeycomb and related Kugel-Khomskii models
- Ferromagnetic ferroelectricity due to the Kugel-Khomskii mechanism of the orbital ordering assisted by atomic Hund's second rule effects
- Creating a three dimensional intrinsic electric dipole on rotated CrI bilayers
- Electric field control of moiré skyrmion phases in twisted multiferroic NiI bilayers
- Polaronic and Mott insulating phase of layered magnetic vanadium trihalide VCl3
- Nature of the unconventional heavy fermion Kondo state in monolayer CeSiI
- Symmetry breaking in vanadium trihalides
- Polarization dependent photoemission as a probe of the magnetic ground state in the layered ferromagnet VI3
- Spin-valley magnetism on the triangular moiré lattice with SU(4) breaking interactions