Spin-current driven Dzyaloshinskii-Moriya interaction in the multiferroic BiFeO3 from first-principles

Abstract

The electrical control of magnons opens up new ways to transport and process information for logic devices. In magnetoelectrical multiferroics, the Dzyaloshinskii-Moriya (DM) interaction directly allow for such a control and, hence, is of major importance. We determine the origin and the strength of the (converse) spin current DM interaction in the R3c bulk phase of the multiferroic BiFeO3 based on density functional theory. Our data supports only the existence of one DM interaction contribution originating from the spin current model. By exploring then magnon dispersion in the full Brillouin Zone, we show that the exchange is isotropic, but the DM interaction and anisotropy prefer any propagation and any magnetization direction within the full (111) plane. Our work emphasizes the significance of the asymmetric potential induced by the spin current over the structural asymmetry induced by the anionic octahedron in multiferroics such as BiFeO3.

References in corpus (23)

• Spin current and magneto-electric effect in non-collinear magnets
• Spontaneous Skyrmion Ground States in Magnetic Metals
• First-principles study of spontaneous polarization in multiferroic BiFeO${}_3$
• Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite
• Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
• Origin of magnetoelectric behavior in BiFeO${}_3$
• Influence of strain on magnetization and magnetoelectric effect in La0.7A0.3MnO3 / PMN-PT(001) (A = Sr; Ca)
• Carrier-mediated magnetoelectricity in complex oxide heterostructures
• Electric-field control of spin waves at room temperature in multiferroic BiFeO3
• Significant Dzyaloshinskii-Moriya Interaction at Graphene-Ferromagnet Interfaces due to Rashba-effect
• Engineering skyrmions in transition-metal multilayers for spintronics
• Non collinear magnetism and single ion anisotropy in multiferroic perovskites
• Magnetic dispersion and anisotropy in multiferroic BiFeO3
• Terahertz spectroscopy of spin waves in multiferroic BiFeO${}_3$ in high magnetic fields
• Nonvolatile Electric Field Control of Thermal Magnons in the Absence of an Applied Magnetic Field
• The Spin State and Spectroscopic Modes of Multiferroic BiFeO3
• Magnetic Interactions in BiFeO${}_3$: a First-Principles Study
• Comparison of first-principles methods to extract magnetic parameters in ultra-thin films: Co/Pt(111)
• Dzyaloshinskii-Moryia interaction at an antiferromagnetic interface: first-principles study of FeIr bilayers on Rh(001)
• Identifying the Magnetoelectric Modes of Multiferroic BiFeO${}_3$
• Dzyaloshinskii-Moriya interaction induced by an ultrashort electromagnetic pulse: Application to coherent (anti)ferromagnetic skyrmion nucleation
• The Microscopic Model of BiFeO${}_3$
• Imaging topological defects in a non-collinear antiferromagnet

Cited by in corpus (3)

• A coupled magneto-structural continuum model for multiferroic ${\mathrm{BiFeO}}_3$
• Understanding electronic excited states in BiFeO${}_3$ via ab initio calculations and symmetry analysis
• Flipping of electronic spins in BiFeO${}_3$ via chiral $d-d$ excitations