Magnetic imaging with spin defects in hexagonal boron nitride

Abstract

Optically-active spin defects hosted in hexagonal boron nitride (hBN) are promising candidates for the development of a two-dimensional (2D) quantum sensing unit. Here, we demonstrate quantitative magnetic imaging with hBN flakes doped with negatively-charged boron-vacancy (V${}_{\mathrm{B}}^{-}$) centers through neutron irradiation. As a proof-of-concept, we image the magnetic field produced by CrTe${}_2$, a van der Waals ferromagnet with a Curie temperature slightly above $300$ K. Compared to other quantum sensors embedded in 3D materials, the advantages of the hBN-based magnetic sensor described in this work are its ease of use, high flexibility and, more importantly, its ability to be placed in close proximity to a target sample. Such a sensing unit will likely find numerous applications in 2D materials research by offering a simple way to probe the physics of van der Waals heterostructures.

5 pages, 3 figures, supplemental material as ancillary file

References in corpus (11)

• Sub-nanoscale Temperature, Magnetic Field and Pressure sensing with Spin Centers in 2D hexagonal Boron Nitride
• Room-temperature optically detected magnetic resonance of single defects in hexagonal boron nitride
• Micrometer-scale Magnetic Imaging of Geological Samples Using a Quantum Diamond Microscope
• Room Temperature Coherent Control of Spin Defects in hexagonal Boron Nitride
• High-contrast plasmonic-enhanced shallow spin defects in hexagonal boron nitride for quantum sensing
• Wide Field Imaging of van der Waals Ferromagnet Fe3GeTe2 by Spin Defects in Hexagonal Boron Nitride
• In-plane magnetic domains and Néel-like domain walls in thin flakes of the room temperature CrTe${}_2$ van der Waals ferromagnet
• Generation of Spin Defects by Ion Implantation in Hexagonal Boron Nitride
• Wide-field spectral super-resolution mapping of optically active defects in hBN
• Characterization of room-temperature in-plane magnetization in thin flakes of CrTe${}_2$ with a single spin magnetometer
• Stimulated Emission Depletion Microscopy with Color Centers in Hexagonal Boron Nitride

Cited by in corpus (25)

• 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
• Optically-active spin defects in few-layer thick hexagonal boron nitride
• Multi-species optically addressable spin defects in a van der Waals material
• 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
• Magnetic field imaging by hBN quantum sensor nanoarray
• Symmetric carbon tetramers forming chemically stable spin qubits in hBN
• Above-room-temperature ferromagnetism in ultrathin van der Waals magnet
• Probing Stress and Magnetism at High Pressures with Two-Dimensional Quantum Sensors
• High Frequency Magnetometry with an Ensemble of Spin Qubits in Hexagonal Boron Nitride
• Temperature dependent spin-phonon coupling of boron-vacancy centers in hexagonal boron nitride
• Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride
• Optimisation of electron irradiation for creating spin ensembles in hexagonal boron nitride
• Intrinsic high-fidelity spin polarization of charged vacancies in hexagonal boron nitride
• Nitrogen isotope effects on boron vacancy quantum sensors in hexagonal boron nitride
• Coherent Spins in van der Waals Semiconductor GeS2 at Ambient Conditions
• Coupling spin defects in hexagonal boron nitride to a microwave cavity
• Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride
• Twist Engineering of Anisotropic Excitonic and Optical Properties of a Two-Dimensional Magnetic Semiconductor
• Quantifying the creation of negatively charged boron vacancies in He-ion irradiated hexagonal boron nitride
• Systematic characterization of nanoscale $h$-BN quantum sensor spots created by helium-ion microscopy
• Systematic investigation of dynamic nuclear polarization with boron vacancy in hexagonal boron nitride