Observation of Magnetic Proximity Effect Using Resonant Optical Spectroscopy of an Electrically Tunable MoSe${}_2$/CrBr${}_3$ Heterostructure

Abstract

Van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant optical reflection spectroscopy to the observe magnetic proximity effect in a gate-tunable MoSe${}_2$/CrBr${}_3$ heterostructure. High quality of the interface leads to a giant zero-field splitting of the K and K' valley excitons in MoSe${}_2$, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant optical spectroscopy to fully characterize the CrBr${}_3$ magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.

References in corpus (5)

• Probing magnetism in 2D materials at the nanoscale with single spin microscopy
• Direct photoluminescence probing of ferromagnetism in monolayer two-dimensional CrBr3
• Atomically Thin CrCl3: An in-Plane Layered Antiferromagnetic Insulator
• Layer-Resolved Magnetic Proximity Effect in van der Waals Heterostructures
• Two dimensional magnets: Forgotten history and recent progress towards spintronic applications

Cited by in corpus (44)

• Engineering symmetry breaking in two-dimensional layered materials
• Magnetic Two-Dimensional Chromium Trihalides: A Theoretical Perspective
• Magnetic domains and domain wall pinning in two-dimensional ferromagnets revealed by nanoscale imaging
• Interplay between spin proximity effect and charge-dependent exciton dynamics in MoSe${}_2$ / CrBr${}_3$ van der Waals heterostructures
• Guide to optical spectroscopy of layered semiconductors
• Magnetization textures in twisted bilayer 2D CrX${}_3$ (X=Br, I)
• Asymmetric magnetic proximity interactions in MoSe${}_2$/CrBr${}_3$ van der Waals heterostructures
• Raman scattering signatures of the strong spin-phonon coupling in the bulk magnetic van der Waals material CrSBr
• Large exciton binding energies in MnPS${}_3$ as a case study of vdW layered magnet
• Strong manipulation of the valley splitting upon twisting and gating in MoSe${}_2$/CrI${}_3$ and WSe${}_2$/CrI${}_3$ van der Waals heterostructures
• Magneto-optical sensing of the pressure driven magnetic ground states in bulk CrSBr
• Electrically switchable valley polarization, spin/valley filter, and valve effects in transition-metal dichalcogenide monolayers interfaced with two-dimensional ferromagnetic semiconductors
• Charge transfer and asymmetric coupling of MoSe${}_2$ valleys to the magnetic order of CrSBr
• Proximity spin-orbit and exchange coupling in ABA and ABC trilayer graphene van der Waals heterostructures
• Temperature induced modulation of resonant Raman scattering in bilayer 2H-MoS${}_2$
• Magnetic Anisotropy in Two-dimensional van der Waals Magnetic Materials and Their Heterostructures: Importance, Mechanisms, and Opportunities
• Effects of substrate-surface reconstruction and orientation on spin-valley polarization in MoTe${}_2$/EuO
• Elucidating proximity magnetism through polarized neutron reflectometry and machine learning
• Signatures of electric field and layer separation effects on the spin-valley physics of MoSe${}_2$/WSe${}_2$ heterobilayers: from energy bands to dipolar excitons
• Magneto-optical chirality in a coherently coupled exciton-plasmon system
• The optical response of artificially twisted MoS${}_2$ bilayers
• Confined Trions and Mott-Wigner States in a Purely Electrostatic Moiré Potential
• Charge Density Wave Activated Excitons in TiSe${}_2$-MoSe${}_2$ Heterostructures
• Stability of the In-Plane Room Temperature van der Waals Ferromagnet Chromium Ditelluride and Its Conversion to Chromium-Interleaved CrTe${}_2$ Compounds
• Exchange-bias controlled correlations in magnetically encapsulated twisted van der Waals dichalcogenides
• Magnon-exciton proximity coupling at a van der Waals heterointerface
• Optical signatures of periodic magnetization: the moiré Zeeman effect
• Ferroelectric valley valves with graphene/MoTe${}_2$ van der Waals heterostructures
• Reversible edge spin currents in antiferromagnetically proximitized dichalcogenides
• Interplay of energy and charge transfer in WSe2/CrSBr heterostructures
• Moire-enabled topological superconductivity in twisted bilayer graphene
• Long-range anisotropic Heisenberg ferromagnets and electrically tunable ordering
• Magnetic phases and zone-folded phonons in a frustrated van der Waals magnet
• Engineering chiral topological superconductivity in twisted Ising superconductors
• Electrically tunable room-temperature ferromagnetism in CrBr${}_3$
• Single- and narrow-line photoluminescence in a boron nitride-supported MoSe${}_2$/graphene heterostructure
• Multidimensional sensing of proximity magnetic fields via intrinsic activation of dark excitons in WSe${}_2$/CrCl${}_3$ heterostructure
• Spin dependent charge transfer in MoSe2/hBN/Ni hybrid structures
• Raman tensor for two-dimensional massive Dirac fermions
• Valley polarization of trions in monolayer MoSe${}_2$ interfaced with bismuth iron garnet
• Light-matter interactions in layered materials and heterostructures: from moiré physics and magneto-optical effects to ultrafast dynamics and hybrid meta-photonics
• Symmetry-dependent antiferromagnetic proximity effects on valley splitting
• Effect of spin-dependent tunneling and intervalley scattering in magnetic-semiconductor van der Waals heterostructures on exciton and trion polarization
• Designer quantum matter in van der Waals heterostructures