Fabrication of all diamond scanning probes for nanoscale magnetometry

Abstract

The electronic spin of the nitrogen vacancy (NV) center in diamond forms an atomically sized, highly sensitive sensor for magnetic fields. To harness the full potential of individual NV centers for sensing with high sensitivity and nanoscale spatial resolution, NV centers have to be incorporated into scanning probe structures enabling controlled scanning in close proximity to the sample surface. Here, we present an optimized procedure to fabricate single-crystal, all-diamond scanning probes starting from commercially available diamond and show a highly efficient and robust approach for integrating these devices in a generic atomic force microscope. Our scanning probes consisting of a scanning nanopillar (200 nm diameter, $1-2\mu$m length) on a thin ($<1\mu$m) cantilever structure, enable efficient light extraction from diamond in combination with a high magnetic field sensitivity (${\eta }_{\mathrm{AC}}\approx 50\pm 20\mathrm{nT}/\sqrt{\mathrm{Hz}}$). As a first application of our scanning probes, we image the magnetic stray field of a single Ni nanorod. We show that this stray field can be approximated by a single dipole and estimate the NV-to-sample distance to a few tens of nanometer, which sets the achievable resolution of our scanning probes.

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Cited by in corpus (81)

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• Purely Antiferromagnetic Magnetoelectric Random Access Memory
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• Deterministic enhancement of coherent photon generation from a nitrogen-vacancy center in ultrapure diamond
• Spin Readout Techniques of the Nitrogen-Vacancy Center in Diamond
• Cavity quantum electrodynamics with color centers in diamond
• Single-molecule Scale Magnetic Resonance Spectroscopy using Nitrogen-Vacancy Centers in Diamond
• Nanoscale imaging of current density with a single-spin magnetometer
• Optically coherent nitrogen-vacancy centers in μm-thin etched diamond membranes
• Rectangular Photonic Crystal Nanobeam Cavities in Bulk Diamond
• Efficient Extraction of Light from a Nitrogen-Vacancy Center in a Diamond Parabolic Reflector
• Microwave device characterisation using a widefield diamond microscope
• Microscopic imaging of elastic deformation in diamond via in-situ stress tensor sensors
• Materials challenges for quantum technologies based on color centers in diamond
• Skyrmion morphology in ultrathin magnetic films
• Diamond Integrated Quantum Photonics: A Review
• Nanomagnetism of magnetoelectric granular thin-film antiferromagnets
• Widefield imaging of superconductor vortices with electron spins in diamond
• Nanoscale Sensing Using Point Defects in Single-Crystal Diamond: Recent Progress on Nitrogen Vacancy Center-Based Sensors
• Crystallographic Orientation Dependent Reactive Ion Etch in Single Crystal Diamond
• Room temperature skyrmions at zero field in exchange-biased ultrathin films
• Charge State Dynamics and Optically Detected Electron Spin Resonance Contrast of Shallow Nitrogen-Vacancy Centers in Diamond
• Strong Coupling between a Single NV Spin and the Rotational Mode of Diamonds Levitating in an Ion Trap
• Characterization of room-temperature in-plane magnetization in thin flakes of CrTe${}_2$ with a single spin magnetometer
• Low charge-noise nitrogen-vacancy centers in diamond created using laser writing with a solid-immersion lens
• Rapid classification of quantum sources enabled by machine learning
• Parabolic diamond scanning probes for single spin magnetic field imaging
• Three-dimensional solid-state qubit arrays with long-lived spin coherence
• Measurements of the lower critical field of superconductors using NV centers in diamond optical magnetometry
• Engineering electron-phonon coupling of quantum defects to a semi-confocal acoustic resonator
• Cavity-Enhanced Photon Emission from a Single Germanium-Vacancy Center in a Diamond Membrane
• Current-induced nucleation and dynamics of skyrmions in a Co-based Heusler alloy
• Development of a high quality thin diamond membrane with embedded nitrogen-vacancy centers for hybrid spin-mechanical quantum systems
• Optimal design of diamond-air microcavities for quantum networks using an analytical approach
• Nuclear Spin Assisted Magnetic Field Angle Sensing
• Optimized Single-Crystal Diamond Scanning Probes for High Sensitivity Magnetometry
• Shallow Silicon Vacancy Centers with lifetime-limited optical linewidths in Diamond Nanostructures
• Cryogenic platform for coupling color centers in diamond membranes to a fiberbased microcavity
• Low temperature photo-physics of single NV centers in diamond
• Cavity-enhanced Raman scattering for in situ alignment and characterization of solid-state microcavities
• Roadmap on Nanoscale Magnetic Resonance Imaging
• High quality-factor diamond-confined open microcavity
• Spin Measurements of NV Centers Coupled to a Photonic Crystal Cavity
• (111)-oriented, single crystal diamond tips for nanoscale scanning probe imaging of out-of-plane magnetic fields
• Comparison of different methods of nitrogen-vacancy layer formation in diamond for widefield quantum microscopy
• Robust Magnetometry with Single NV Centers via Two-step Optimization
• Widely-tunable, doubly-resonant Raman scattering on diamond in an open microcavity
• Directional excitation of a high-density magnon gas using coherently driven spin waves
• Single crystal diamond pyramids for applications in nanoscale quantum sensing
• Color center fluorescence and spin manipulation in single crystal, pyramidal diamond tips
• Coherent Coupling of a Diamond Tin-Vacancy Center to a Tunable Open Microcavity
• Diamond Phononic Crystal Spin-Mechanical Resonators with Spectrally Stable Nitrogen Vacancy Centers
• Statistically Modeling Optical Linewidths of Nitrogen Vacancy Centers in Post-Implanted Nanostructures
• Real-space probing of the local magnetic response of thin-film superconductors using single spin magnetometry
• Reliable Nanofabrication of Single-Crystal Diamond Photonic Nanostructures for Nanoscale Sensing
• Identifying the Origin of Thermal Modulation of Exchange Bias in MnPS3/Fe3GeTe2 van der Waals Heterostructures
• Room Temperature Magnetic Skyrmions in Gradient-Composition Engineered CoPt Single Layers
• Optical far-field super-resolution microscopy using nitrogen vacancy center ensemble in bulk diamond
• Spectrally stable nitrogen-vacancy centers in diamond formed by carbon implantation into thin microstructures
• Development of All-Diamond Scanning Probes Based on Faraday Cage Angled Etching Techniques
• Fiber-taper collected emission from NV centers in high-$Q/V$ diamond microdisks
• Spin-strain coupling in nanodiamonds
• Measurements of the magnetic properties of conduction electrons
• Multi-Angle Reconstruction of Domain Morphology with All-Optical Diamond Magnetometry
• Photoinduced charge injection from shallow point defects in diamond into water
• Homogeneous Free-Standing Nanostructures from Bulk Diamond over Millimeter Scales for Quantum Technologies
• Enhancement of spin-to-charge conversion of diamond NV centers at ambient conditions using surface electrodes
• Miniaturized magnetic-field sensor based on nitrogen-vacancy centers
• Nanotube Double Quantum Dot Spin Transducer for Scalable Quantum Information Processing
• Enhanced widefield quantum sensing with nitrogen-vacancy ensembles using diamond nanopillar arrays
• Ferroelectric tunnel junctions
• A robust, fiber-coupled scanning probe magnetometer using electron spins at the tip of a diamond nanobeam
• Diamond-based optical vector magnetometer
• Scanning Diamond NV Center Probes Compatible with Conventional AFM Technology
• Investigations of optical aberration on quantum diamond microscopy toward high spatial resolution and sensitivity
• Laser-cut Patterned, Micrometer-thin Diamond Membranes with Coherent Color Centers for Open Microcavities
• Probing the fluctuating magnetic field of Fe-triazole spin-crossover thin-layers with nitrogen-vacancy centers in diamond
• Medusa 84 SiH -- A novel high Selectivity Electron Beam Resist for Diamond Quantum Technologies
• All-optical magnetic imaging with spin defects in van der Waals materials at Angstrom-scale