Magnetic exchange interactions in the van der Waals layered antiferromagnet MnPSe3

Abstract

Two-dimensional van der Waals compounds with magnetic ions on a honeycomb lattice are hosts to a variety of exotic behavior. The magnetic interactions in one such compound, MnPSe${}_3$, are investigated with elastic and inelastic neutron scattering. Magnetic excitations are observed in the magnetically ordered regime and persist to temperatures well above the ordering temperature, ${\mathrm{T}}_{\mathrm{N}}$ = 74 K, consistent with low dimensional magnetic interactions. The inelastic neutron scattering results allow a model spin Hamiltonian to be presented that includes dominant intralayer interactions of $J_{1ab}$=0.45 meV, $J_{2ab}$=0.03 meV, $J_{3ab}$=0.19 meV, and appreciable interlayer interactions of $J_c$=0.031(5) meV. No evidence for anisotropy in the form of a spin-gap is observed in the data collected. The measurements on MnPSe${}_3$ are contrasted with those on MnPS${}_3$ and reveal a large increase in the interlayer exchange interactions in MnPSe${}_3$, despite the quasi-2D magnetic behavior.

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Cited by in corpus (17)

• Magnon-phonon hybridization in quasi-2D antiferromagnet MnPSe${}_3$
• Controlling magnetic exchange and anisotropy by non-magnetic ligand substitution in layered MPX3 (M = Ni, Mn; X = S, Se)
• Proximity effects in graphene on monolayers of transition-metal phosphorus trichalcogenides MPX${}_3$
• Strong effects of uniaxial pressure and short-range correlations in Cr2Ge2Te6
• Ferroaxial moment induced by vortex spin texture
• Understanding and tuning magnetism in layered Ising-type antiferromagnet FePSe3 for potential 2D magnet
• Cavity-renormalized quantum criticality in a honeycomb bilayer antiferromagnet
• Superexchange interactions and magnetic anisotropy in MnPSe${}_3$ monolayer
• Temperature-Induced Magnonic Chern Insulator in Collinear Antiferromagnets
• Evaluating SCAN and r${}^2$SCAN meta-GGA functionals for predicting transition temperatures in antiferromagnetic materials
• A deep investigation of NiO and MnO through the first principle calculations and Monte Carlo simulations
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• Exchange striction induced thermal Hall effect in van der Waals antiferromagnet MnPS${}_3$
• Higher-order Topological States in Chiral Split Magnons of Honeycomb Altermagnets
• Topological Interlayer Superconductivity in a van der Waals Heterostructure
• Spin and lattice dynamics of a van der Waals antiferromagnet MnPSe${}_3$
• Spin-flip optical excitations in van der Waals antiferromagnet CrPS${}_4$