Scanning nitrogen-vacancy center magnetometry in large in-plane magnetic fields

Abstract

Scanning magnetometry with nitrogen-vacancy (NV) centers in diamond has emerged as a powerful microscopy for studying weak stray field patterns with nanometer resolution. Due to the internal crystal anisotropy of the spin defect, however, external bias fields -- critical for the study of magnetic materials -- must be applied along specific spatial directions. In particular, the most common diamond probes made from {100}-cut diamond only support fields at an angle of $\theta =55^{\circ }$ from the surface normal. In this paper, we report fabrication of scanning diamond probes from {110}-cut diamond where the spin anisotropy axis lies in the scan plane ($\theta =90^{\circ }$). We show that these probes retain their sensitivity in large in-plane fields and demonstrate scanning magnetometry of the domain pattern of Co-NiO films in applied fields up to 40 mT. Our work extends scanning NV magnetometry to the important class of materials that require large in-plane fields.

arXiv comment6 pages, 3 figures

References in corpus (31)

• Optical Magnetometry
• A robust, scanning quantum system for nanoscale sensing and imaging
• Avoiding power broadening in optically detected magnetic resonance of single NV defects for enhanced DC-magnetic field sensitivity
• Probing magnetism in 2D materials at the nanoscale with single spin microscopy
• Anisotropic interactions of a single spin and dark-spin spectroscopy in diamond
• Imaging viscous flow of the Dirac fluid in graphene
• Real-space imaging of non-collinear antiferromagnetic order with a single spin magnetometer
• Purely Antiferromagnetic Magnetoelectric Random Access Memory
• Surface-induced charge state conversion of nitrogen-vacancy defects in nanodiamonds
• Imaging currents in HgTe quantum wells in the quantum spin Hall regime
• The nature of domain walls in ultrathin ferromagnets revealed by scanning nanomagnetometry
• Quantitative nanoscale vortex-imaging using a cryogenic quantum magnetometer
• Nanometre-scale probing of spin waves using single electron spins
• High-speed domain wall racetracks in a magnetic insulator
• Stray-field imaging of magnetic vortices with a single diamond spin
• Nanoscale electrical conductivity imaging using a nitrogen-vacancy center in diamond
• Magnetic resonance imaging of spin-wave transport and interference in a magnetic insulator
• Magnetic domains and domain wall pinning in two-dimensional ferromagnets revealed by nanoscale imaging
• Nanoscale imaging of current density with a single-spin magnetometer
• Nanoscale mechanics of antiferromagnetic domain walls
• Photonic nano-structures on (111) oriented diamond
• Off-Resonant Manipulation of Spins in Diamond via Precessing Magnetization of a Proximal Ferromagnet
• Skyrmion morphology in ultrathin magnetic films
• Nanomagnetism of magnetoelectric granular thin-film antiferromagnets
• Local dynamics of topological magnetic defects in the itinerant helimagnet FeGe
• Co-existence of Bloch and Neel walls in a collinear antiferromagnet
• Characterization of room-temperature in-plane magnetization in thin flakes of CrTe${}_2$ with a single spin magnetometer
• Single spin sensing of domain wall structure and dynamics in a thin film skyrmion host
• Imaging of sub-$\mu$A currents in bilayer graphene using a scanning diamond magnetometer
• (111)-oriented, single crystal diamond tips for nanoscale scanning probe imaging of out-of-plane magnetic fields
• Current-induced fragmentation of antiferromagnetic domains

Cited by in corpus (8)

• Scanning nitrogen-vacancy magnetometry down to 350mK
• Roadmap on Nanoscale Magnetic Resonance Imaging
• Accelerated quantum control in a three-level system by jumping along the geodesics
• Two-photon-transition superadiabatic passage in an nitrogen-vacancy center in diamond
• Diamond-on-chip infrared absorption magnetic field camera
• Simulation of the Dissipative Dynamics of Strongly Interacting NV Centers with Tensor Networks
• Josephson anomalous vortices
• Nanoscale magnetometry of a synthetic three-dimensional spin texture