Tailoring magnetic insulator proximity effects in graphene: First-principles calculations

Abstract

We report a systematic first-principles investigation of the influence of different magnetic insulators on the magnetic proximity effect induced in graphene. Four different magnetic insulators are considered: two ferromagnetic europium chalcogenides namely EuO and EuS and two ferrimagnetic insulators yttrium iron garnet (YIG) and cobalt ferrite (CFO). The obtained exchange-splitting varies from tens to hundreds of meV. We also find an electron doping induced by YIG and europium chalcogenides substrates, that shift the Fermi level up to 0.78 eV and 1.3 eV respectively, whereas hole doping up to 0.5 eV is generated by CFO. Furthermore, we study the variation of the extracted exchange and tight binding parameters as a function of the EuO and EuS thicknesses. We show that those parameters are robust to thickness variation such that a single monolayer of magnetic insulator can induce a large magnetic proximity effect on graphene. Those findings pave the way towards possible engineering of graphene spin-gating by proximity effect especially in view of recent experiments advancement.

12 pages, 3 figures, submitted to 2D Materials

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Cited by in corpus (52)

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• Van der Waals spin valves
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• Quantum Anomalous Hall Effects in Graphene from Proximity-Induced Uniform and Staggered Spin-Orbit and Exchange Coupling
• Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene
• Spin Hall effect and Weak Antilocalization in Graphene/Transition Metal Dichalcogenide Heterostructures
• Spin Proximity Effects in Graphene/Topological Insulator Heterostructures
• Layer k-projection and unfolding electronic bands at interfaces
• Spin-split band hybridization in graphene proximitized with $\alpha$-RuCl${}_3$ nanosheets
• Magnetic-proximity-induced magnetoresistance on topological insulators
• Electrically tunable exchange splitting in bilayer graphene on monolayer Cr${}_2$X${}_2$Te${}_6$ with X=Ge, Si, and Sn
• Twist- and gate-tunable proximity spin-orbit coupling, spin relaxation anisotropy, and charge-to-spin conversion in heterostructures of graphene and transition-metal dichalcogenides
• Proximity effects in Graphene and Ferromagnetic CrBr3 van der Waals Heterostructure
• Scattering-induced and highly tunable by gate damping-like spin-orbit torque in graphene doubly proximitized by two-dimensional magnet Cr${}_2$Ge${}_2$Te${}_6$ and WS${}_2$
• Tunable Circular Dichroism and Valley Polarization in the Modified Haldane Model
• Rashba-type Dzyaloshinskii-Moriya interaction, perpendicular magnetic anisotropy and skyrmion states at 2D materials/Co interfaces
• Engineering Proximity Exchange by Twisting: Reversal of Ferromagnetic and Emergence of Antiferromagnetic Dirac Bands in Graphene/Cr${}_2$Ge${}_2$Te${}_6$
• Bilayer graphene encapsulated within monolayers of WS${}_2$ or Cr${}_2$Ge${}_2$Te${}_6$: Tunable proximity spin-orbit or exchange coupling
• Effective Interactions in a Graphene Layer Induced by the Proximity to a Ferromagnet
• Antiferromagnetic spin valve from heterostructure of two-dimensional hexagonal crystals
• Spin-orbit-proximitized ferromagnetic metal by monolayer transition metal dichalcogenide: Atlas of spectral functions, spin textures and spin-orbit torques in Co/MoSe${}_2$, Co/WSe${}_2$ and Co/TaSe${}_2$ heterostructures
• Proximity magnetoresistance in graphene induced by magnetic insulators
• Scale-invariant large nonlocality in polycrystalline graphene
• Chiral Majorana fermions in graphene from proximity-induced superconductivity
• Ferrimagnetic and antiferromagnetic phase in bilayer graphene nanoflake controlled with external electric fields
• Magnon-driven chiral charge and spin pumping and electron-magnon scattering from time-dependent quantum transport combined with atomistic spin dynamics theory
• Controllable spin filtering and half metallicity in ${\beta }_{12}$-borophene nanoribbons
• Spin and charge caloritronics in bilayer graphene flakes with magnetic contacts
• Unveiling multiferroic proximity effect in graphene
• Quantum Oscillations of Gilbert Damping in Ferromagnetic/Graphene Bilayer Systems
• Magnetic proximity effect at the interface of two-dimensional materials and magnetic oxide insulators
• Spin-selectable, region-tunable negative differential resistance in graphene double ferromagnetic barriers
• Spin-polarized electric current in silicene nanoribbons induced by atomic adsorption
• Electric-field-induced extremely large change in resistance in graphene ferromagnets
• Proximity-induced diversified magnetic states and electrically-controllable spin polarization in bilayer graphene: Towards layered spintronics
• Transition between canted antiferromagnetic and spin-polarized ferromagnetic quantum Hall states in graphene on a ferrimagnetic insulator
• Klein tunnelling and Hartman effect in graphene junctions with proximity exchange field
• Growth and Characterisation Studies of Eu${}_3$O${}_4$ Thin Films Grown on Si/SiO${}_2$ and Graphene
• Magnetic dielectric- graphene- ferroelectric system as a promising non-volatile device for modern spintronics
• Topological Interlayer Superconductivity in a van der Waals Heterostructure
• Bias dependent spin injection into graphene on YIG through bilayer hBN tunnel barriers
• Strain engineering of ferromagnetic-graphene-ferroelectric nanostructures
• Spin relaxation, Josephson effect and Yu-Shiba-Rusinov states in superconducting bilayer graphene
• Electrically Tunable Spin Exchange Splitting in Graphene Hybrid Heterostructure
• Shubnikov-de Haas oscillations in the anomalous Hall conductivity of Chern insulators
• Spin and Valley Polarized Multiple Fermi Surfaces of α-RuCl${}_3$/Bilayer Graphene Heterostructure
• Spin-dependent electronic lenses based on hybrid graphene nanostructures
• Chiral Majorana Fermions in two dimensional square lattice antiferromagnet with proximity-induced superconductivity
• Nontrivial magnetic field related phenomena in the single-layer graphene on ferroelectric substrate
• Valley-Polarized Quantum Anomalous Hall Phase in Bilayer Graphene with Layer-Dependent Proximity Effects
• Geometry-Driven Charge and Spin Transport in $\beta 12$ Borophene Quantum Dots