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    AI Overview
    Scanning Nitrogen-Vacancy (NV) magnetometers use diamond quantum sensors to image magnetic fields at the nanoscale with high spatial resolution (
    <50is less than 50
    <50
     nm) under ambient or cryogenic conditions. They enable chemical research, such as mapping magnetic vortices in materials, characterizing 2D magnets, and analyzing single-molecule spin, by detecting weak stray fields. 
    Key Applications in Chemical and Materials Research 
    • Nanoscale Magnetic Imaging: Detects magnetic vortices, domain walls, and topological structures (skyrmions) in advanced materials.
    • 2D Material Analysis: Investigates magnetic textures in van der Waals materials, such as
      CrBr3CrBr sub 3
      CrBr3
      , by measuring stray magnetic fields and determining magnetization.
    • Nanomagnet Characterization: Assesses the magnetic domains and structural integrity of cobalt nanoparticles fabricated via electron-beam deposition.
    • Biological Sensing: Used for detecting weak biological magnetic fields from neurons or cells, offering insights into cellular bioelectromagnetism.
    • Microfluidic Integration: Maps local magnetic field distributions of individual magnetic particles within a microfluidic device, allowing for chemical sensing in liquid environments. 
    Operational Principles and Advantages 
    • High Spatial Resolution: Achieves sub-
      5050
      50
       nm imaging resolution by utilizing a single defect spin located at the tip of a diamond scanning probe.
    • Ambient Operation: Functions at room temperature, allowing for the analysis of samples in their natural or biological environments.
    • Extremely Sensitive: Can detect variations 50 million times smaller than the Earth's magnetic field.
    • Technique Combination: Often pairs with atomic force microscopy (AFM) for concurrent topographical mapping, with QZabre AG providing commercial scanning NV microscopes for such purposes. 
    These systems typically use green diode lasers (e.g.,
    516516
    516
     nm) for optical excitation and detect photoluminescence in the
    630
    −800
     nm range to map magnetic fields through Optically Detected Magnetic Resonance (ODMR). 
    • Principles of Scanning Nitrogen-Vacancy Magnetometry ...
      Scanning nitrogen-vacancy (NV) magnetometry is a measure- ment technique that combines scanned probe microscopy (SPM) with optical...
      Mad City Labs
    • Scanning NV Magnetometry Reveals Magnetic Textures
      Mar 31, 2021 — Cryogenic NV scanning magnetometry is a technique that can be used to study magnetic domains in bidimensional van der Waals magnet...
      Qnami
    • Scanning Nitrogen-Vacancy Magnetometry of Focused ...
      Feb 7, 2024 — Focused-electron-beam-induced deposition is a promising technique for patterning nanomagnets in a single step. We fabricate cobalt...
      ACS Publications
    • Opportunities for nitrogen-vacancy-assisted magnetometry to study ...
      Aug 9, 2022 — Recently, a technique has emerged for measuring magnetic fields at the nanoscale based on optical detection of the electron spin r...
      AIP Publishing
    • Nanoscale magnetometry with NV centers in diamond
      Recently, negatively charged nitrogen-vacancy (NV) color centers in diamond have been proposed as a promising system for nanoscale...
      Yacoby Lab
    • Minimizing Sensor-Sample Distances in Scanning Nitrogen- ... - PMC
      Scanning NV Microscope The experiments are performed using a commercial scanning NV magnetometer (QSM, QZabre AG), which operates ...
      PubMed Central (PMC) (.gov)
    Show all
    Show more
    Videos
    Magnetic imaging using NV-diamond: techniques ...
    YouTube · Institute for Quantum Computing
    Aug 19, 2015
    YouTube · Institute for Quantum Computing
    51:35
    NV magnetometry is a powerful tool for sensing and imaging magnetic fields. It has applications in biology, geoscience, and condensed matter physics.
    Institute for Quantum Computing
    YouTube·
    Aug 19, 2015

    Magnetic imaging using NV-diamond: techniques ...

    YouTube·Institute for Quantum Computing·Aug 19, 2015
    YouTube
    In this video
    • 00:10
      Opening remarks
    • 04:00
      Sensitivity vs. resolution
    • 07:48
      Magnetic mapping of magnet field patterns from primitive meteorites
    • 15:24
      Why are these model systems for genetics?
    • 23:47
      Magnetic fields and planetary formation
    • 28:41
      Work in Progress
    • 32:23
      Directionality of action potentials
    • 37:38
      Challenges for single molecule imaging
    • 43:02
      Second generation NV-diamond system
    • 50:32
      How long do we need to image?
    Quantum sensing with NV centres - Ania Jayich
    YouTube · Institute for Quantum Computing
    Aug 19, 2015
    YouTube · Institute for Quantum Computing
    45:32
    NV centers in diamond are versatile quantum systems that can be used for strain sensing, magnetic field sensing, and more.
    Institute for Quantum Computing
    YouTube·
    Aug 19, 2015

    Quantum sensing with NV centres - Ania Jayich

    YouTube·Institute for Quantum Computing·Aug 19, 2015
    YouTube
    In this video
    • 00:21
      Introduction
    • 04:59
      Integrated system advantages
    • 07:28
      Strain coupling to spin state
    • 11:13
      Photoluminescence emission spectrum
    • 15:51
      Orientation of NV centres
    • 20:12
      Polarization plot
    • 25:30
      Dynamic polarization state tuning
    • 29:32
      Hard disk magnetic field mapping
    • 33:28
      Future probe sensitivity improvements
    • 44:20
      Measurement challenges
    Quantum Diamond Sensing: The Surprising Power of NV ...
    YouTube · 632nm
    Jun 6, 2025
    YouTube · 632nm
    2:21:21
    Ron explains how Envy centers detect magnetic fields with extraordinary sensitivity and spatial resolution.
    632nm
    YouTube·
    Jun 6, 2025

    Quantum Diamond Sensing: The Surprising Power of NV ...

    YouTube·632nm·Jun 6, 2025
    YouTube
    In this video
    • 00:42
      The Fascination with Diamonds and NV Centers
    • 02:58
      Early Research and Collaborations
    • 10:21
      Breakthroughs and Applications in Science
    • 50:48
      Advancements in Magnetic Imaging
    • 51:59
      Commercial Applications of Quantum Diamond Microscopes
    • 01:02:16
      Challenges in Translating Research to Products
    • 01:11:11
      Future Prospects and Innovations
    • 01:36:46
      Exploring Quantum Systems and Defects
    • 01:39:03
      The Harvard Quantum Community
    • 01:44:53
      Precision Measurement and Quantum Applications
    • 01:54:28
      Advice for Aspiring Scientists
    View all

    Web results

    High-sensitivity nanoscale quantum sensors based on a ...


    Nature
    https://www.nature.com › ... › articles
    Nature
    https://www.nature.com › ... › articles
    by R Katsumi · 2025 · Cited by 23 — For instance, magnetic sensing based on a single NV center facilitates the nanoscale detection of chemical and biomedical information and ...Read more

    Nanoscale magnetometry with NV centers in diamond


    Yacoby Lab
    https://yacoby.physics.harvard.edu › file_url
    Yacoby Lab
    https://yacoby.physics.harvard.edu › file_url
    PDF
    by S Hong · 2013 · Cited by 367 — In this review article, we cover two recently developed methods to realize NV-based magnetometers: Scanning single NV magnetometers capable of detecting a ...Read more

    NV magnetometry – A White Paper by Qnami


    HORIBA
    https://www.horiba.com › int › news › detail › news › n...
    HORIBA
    https://www.horiba.com › int › news › detail › news › n...
    Jun 16, 2021 — Scanning NV magnetometry relies on the use of a sharp, microscopic NV diamond tip, which is scanned at a controlled distance of just a few ...Read more

    Scanning Nitrogen-Vacancy Magnetometry of Focused ...


    ACS Publications
    https://pubs.acs.org › doi
    ACS Publications
    https://pubs.acs.org › doi
    We fabricate cobalt nanomagnets in such a process and characterize their content, saturation magnetization, and stray magnetic field profiles.Read more

    Table-top Analysis of Magnetic Materials at the Atomic Scale


    AZoM
    https://www.azom.com › article
    AZoM
    https://www.azom.com › article
    Jul 29, 2024 — It allows for atomic-level tabletop examination of magnetic materials using a method known as scanning NV magnetometry.Read more

    Diamond NV Center Magnetometry | NIST


    National Institute of Standards and Technology (.gov)
    https://www.nist.gov › programs-projects › diamond-nv...
    National Institute of Standards and Technology (.gov)
    https://www.nist.gov › programs-projects › diamond-nv...
    Oct 3, 2019 — The nitrogen-vacancy (NV) center in diamond has emerged in the last decade as the most exciting new technology for nanoscale magnetic measurements.Read more

    Scanning NV Microscope (SNVM), Diamond ...


    CIQTEK
    https://www.ciqtekglobal.com › scanning-nv-microscop...
    CIQTEK
    https://www.ciqtekglobal.com › scanning-nv-microscop...
    The CIQTEK Scanning NV Microscope (SNVM), based on the nitrogen-vacancy (NV) center in diamond and AFM scanning imaging, can tell you the answer.Read more

    Scanning Localized Magnetic Fields in a Microfluidic Device ...


    University of Maryland
    https://waks.jqi.umd.edu › publications › scanning-locali...
    University of Maryland
    https://waks.jqi.umd.edu › publications › scanning-locali...
    We demonstrate a method to perform localized magnetometry in a microfluidic device with a 48 nm spatial precision. The device manipulates individual magnetic ...Read more

    Fast Scanning Nitrogen-Vacancy Magnetometry by Spectrum ...


    APS Journals
    https://link.aps.org › doi › PhysRevApplied.19.034003
    APS Journals
    https://link.aps.org › doi › PhysRevApplied.19.034003
    by P Welter · 2023 · Cited by 14 — The scanning nitrogen-vacancy (N-V) magnetometer is a next-generation scanning probe microscope able to quantitatively map surface magnetic ...Read more
  • Article Text
  • INTRODUCTION
  • IMPLEMENTATION
  • EXPERIMENTAL RESULTS
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