Wide Field Imaging of van der Waals Ferromagnet Fe3GeTe2 by Spin Defects in Hexagonal Boron Nitride

Abstract

Emergent color centers with accessible spins hosted by van der Waals materials have attracted substantial interest in recent years due to their significant potential for implementing transformative quantum sensing technologies. Hexagonal boron nitride (hBN) is naturally relevant in this context due to its remarkable ease of integration into devices consisting of low-dimensional materials. Taking advantage of boron vacancy spin defects in hBN, we report nanoscale quantum imaging of low-dimensional ferromagnetism sustained in Fe3GeTe2/hBN van der Waals heterostructures. Exploiting spin relaxometry methods, we have further observed spatially varying magnetic fluctuations in the exfoliated Fe3GeTe2 flake, whose magnitude reaches a peak value around the Curie temperature. Our results demonstrate the capability of spin defects in hBN of investigating local magnetic properties of layered materials in an accessible and precise way, which can be extended readily to a broad range of miniaturized van der Waals heterostructure systems.

13 pages, 5 figures

References in corpus (19)

• Coherent control of single spins in silicon carbide at room temperature
• Probing magnetism in 2D materials at the nanoscale with single spin microscopy
• Sub-nanoscale Temperature, Magnetic Field and Pressure sensing with Spin Centers in 2D hexagonal Boron Nitride
• Highly efficient spin-orbit torque and switching of layered ferromagnet Fe3GeTe2
• High-contrast plasmonic-enhanced shallow spin defects in hexagonal boron nitride for quantum sensing
• Large anomalous Nernst effect in a van der Waals ferromagnet Fe${}_3$GeTe${}_2$
• Gigantic current control of coercive field and magnetic memory based on nm-thin ferromagnetic van der Waals Fe3GeTe2
• Generation of Spin Defects by Ion Implantation in Hexagonal Boron Nitride
• Excited State Spectroscopy of Boron Vacancy Defects in Hexagonal Boron Nitride using Time-Resolved Optically Detected Magnetic Resonance
• Excited-state spin-resonance spectroscopy of V${}_{\text{B}}^{-}$ defect centers in hexagonal boron nitride
• Electron-nuclear coherent coupling and nuclear spin readout through optically polarized VB- spin states in hBN
• Excited-state spectroscopy of spin defects in hexagonal boron nitride
• Quantum Imaging of Magnetic Phase Transitions and Spin Fluctuations in Intrinsic Magnetic Topological Nanoflakes
• Revealing room temperature ferromagnetism in exfoliated Fe${}_5$GeTe${}_2$ flakes with quantum magnetic imaging
• AC susceptometry of 2D van der Waals magnets enabled by the coherent control of quantum sensors
• Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2
• Tuning color centers at a twisted interface
• Quantum microscopy with van der Waals heterostructures
• Creating Quantum Emitters in Hexagonal Boron Nitride Deterministically on Chip-Compatible Substrates

Cited by in corpus (52)

• Nuclear spin polarization and control in a van der Waals material
• Quantum sensing and imaging with spin defects in hexagonal boron nitride
• Coherent dynamics of strongly interacting electronic spin defects in hexagonal boron nitride
• Room temperature coherent control of protected qubit in hexagonal boron nitride
• Magnetic imaging with spin defects in hexagonal boron nitride
• Excited-state optically detected magnetic resonance of spin defects in hexagonal boron nitride
• Optically-active spin defects in few-layer thick hexagonal boron nitride
• Greatly Enhanced Emission from Spin Defects in Hexagonal Boron Nitride Enabled by a Low-Loss Plasmonic Nano-Cavity
• Multi-species optically addressable spin defects in a van der Waals material
• Single nuclear spin detection and control in a van der Waals material
• Isotope engineering for spin defects in van der Waals materials
• Isotopic control of the boron-vacancy spin defect in hexagonal boron nitride
• Sensing Spin Wave Excitations by Spin Defects in Few-Layer Thick Hexagonal Boron Nitride
• Detection of paramagnetic spins with an ultrathin van der Waals quantum sensor
• Quantum Optics Applications of Hexagonal Boron Nitride Defects
• Quantum sensing of paramagnetic spins in liquids with spin qubits in hexagonal boron nitride
• Laser Direct Writing of Visible Spin Defects in Hexagonal Boron Nitride for Applications in Spin-Based Technologies
• Magnetic field imaging by hBN quantum sensor nanoarray
• Above-room-temperature ferromagnetism in ultrathin van der Waals magnet
• Quantum noise spectroscopy of dynamical critical phenomena
• Nanotube spin defects for omnidirectional magnetic field sensing
• Symmetry of the Hyperfine and Quadrupole Interactions of Boron Vacancies in a Hexagonal Boron Nitride
• Plasmon Enhanced Quantum Properties of Single Photon Emitters with Hybrid Hexagonal Boron Nitride Silver Nanocube Systems
• Robust Nuclear Spin Polarization via Ground-State Level Anti-Crossing of Boron Vacancy Defects in Hexagonal Boron Nitride
• High Frequency Magnetometry with an Ensemble of Spin Qubits in Hexagonal Boron Nitride
• Materials for Quantum Technologies: a Roadmap for Spin and Topology
• Manipulating the Charge State of Spin Defects in Hexagonal Boron Nitride
• Plasmonic Nanocavity to Boost Single Photon Emission from Defects in Thin Hexagonal Boron Nitride
• Temperature dependent spin-phonon coupling of boron-vacancy centers in hexagonal boron nitride
• Giant asymmetric proximity-induced spin-orbit coupling in twisted graphene/SnTe heterostructure
• Comparative study of quantum emitter fabrication in wide bandgap materials using localized electron irradiation
• Intrinsic high-fidelity spin polarization of charged vacancies in hexagonal boron nitride
• Optimisation of electron irradiation for creating spin ensembles in hexagonal boron nitride
• Coherent Spins in van der Waals Semiconductor GeS2 at Ambient Conditions
• Nitrogen isotope effects on boron vacancy quantum sensors in hexagonal boron nitride
• Local noise spectroscopy of Wigner crystals in two-dimensional materials
• Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride
• Proximity-induced spin-orbit coupling in phosphorene on a WSe${}_2$ monolayer
• Coupling spin defects in hexagonal boron nitride to a microwave cavity
• Magnetic-field dependent VB- spin decoherence in hexagonal boron nitrides: A first-principles study
• Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis
• Proximity-Induced Exchange Interaction: a New Pathway for Quantum Sensing using Spin Centers in Hexagonal Boron Nitride
• Quantifying the creation of negatively charged boron vacancies in He-ion irradiated hexagonal boron nitride
• Room-Temperature Electrical Readout of Spin Defects in van der Waals Materials
• Systematic characterization of nanoscale $h$-BN quantum sensor spots created by helium-ion microscopy
• Quantum microscopy with van der Waals heterostructures
• Systematic investigation of dynamic nuclear polarization with boron vacancy in hexagonal boron nitride
• Intermediate Excited State Relaxation Dynamics of Boron Vacancy Spin Defects in Hexagonal Boron Nitride
• All-optical magnetic imaging with spin defects in van der Waals materials at Angstrom-scale
• Multi-wavelength Spin Dynamics of Defects in Hexagonal Boron Nitride
• Surface defects in carbon-doped hexagonal boron nitride for negative-contrast direct laser writing
• Decoherence of V${}_{\mathrm{B}}^{-}$ spin defects in monoisotopic hexagonal boron nitride