Electric field control of magnons in magnetic thin films: ab initio predictions for 2D metallic heterostructures

Abstract

We explore possibilities for control of magnons in two-dimensional heterostructures by an external electric field acting across a dielectric barrier. By performing ab-initio calculations for a Fe monolayer and a Fe bilayer, both suspended in vacuum and deposited on Cu(001), we demonstrate that external electric field can significantly modify magnon lifetimes and that these changes can be related to field-induced changes in the layer-resolved Bloch spectral functions. For systems with more magnon dispersion branches, the gap between high- and low-energy eigenmodes varies with the external field. These effects are strongly influenced by the substrate. Considerable variability in how the magnon spectra are sensitive to the external electric field can be expected, depending on the substrate and on the thickness of the magnetic layer.

References in corpus (7)

• Electric-field control of spin waves at room temperature in multiferroic BiFeO3
• Scaling of intrinsic Gilbert damping with spin-orbital coupling strength
• Electric-field coupling to spin waves in a centrosymmetric ferrite
• Electric-field-induced changes of magnetic moments and magnetocrystalline anisotropy in ultrathin cobalt films
• An accurate scheme to calculate the interatomic Dzyaloshinskii-Moriya interaction parameters
• Voltage control of interface rare-earth magnetic moments
• Electronic control of magnonic and spintronic devices

Cited by in corpus (3)

• Generating extreme electric fields in 2D materials by dual ionic gating
• Intrinsic nonlinear thermal Hall transport of magnons: A Quantum kinetic theory approach
• Anomalous enhancement of Neel order in the $S=1/2$ square lattice Heisenberg model under fictitious magnetic field