The article discusses the development of a facility for measuring magnetic nanodevices using nitrogen-vacancy (NV) centers in diamond. NV centers have unique properties that allow for sensitive magnetic field detection at the nanoscale, even in air at room temperature. The facility aims to improve measurement methods and reduce barriers to application.
Key technical points:
– NV centers in diamond can detect magnetic fields down to 1 nT/Hz1/2 on 10s of nanometer scales
– Long coherence times (up to milliseconds) enable precise frequency measurements
– Spatial resolution is achieved by stabilizing NV centers near diamond surfaces
– Improved readout methods using spin-charge conversion increase measurement efficiency
– Optimal experimental design and data analysis maximize benefit from collected photons
The facility will have two setups: one for scanned diamond tip relaxometry measurements and another for spin-charge conversion methods to enhance measurement efficiency.
Source: https://www.nist.gov/programs-projects/diamond-nv-center-magnetometry
Keywords: diamond, magnetometry, nanodevices, spin-state, quantum-coherence
