Measure electrical currents with Scanning NV Magnetometry

Scanning NV magnetometry is not only suited to measure tiny magnetic fields. It allows to resolve electrical currents (via their magnetic fields) with unprecedented spatial resolution. 

We here apply a current to a 100 nm thick Cr/Au u-shaped wire. The current flows through the nanostructure inducing a local magnetic field which is detected using Scanning NV Magnetometry. We show that the local current density (calculated using the magnetic fields) can be used to identify defects in the nanostructure and geometry-specific current behaviour.

This opens the pathway for using Scanning NV Magnetometry as a tool for failure analysis.  The presented measurements have been performed using Qnami ProteusQ equipped with Vario PQ.

If you want to find out more about these groundbreaking results, download the technical note here.   

See more applications

Novel chiral quantum light source

/ / /
Scanning NV Magnetometry proves how a novel combination of van der Waals materials is the easy and effective chiral quantum light source of the future.

Unconventional flexomagnetism in chromium oxide thin films

/ /
Applying inhomogeneous strain to chromium oxide thin films induces a strong vertical gradient of the Neel temperature inferred through scanning NV magnetometry measurements.

Nanoscale mechanics of domain walls

/ /
Scanning NV Magnetometry unveiled for the first time the nanoscale mechanics of antiferromagnetic domain walls opening new avenues for antiferromagnetic spintronics.

Want to know more?

Talk to us - we're happy to answer your questions.
We are using cookies and analytics tools to give you the best digital experience.
AcceptPrivacy Settings


  • Cookie Consent

Cookie Consent

We are using cookies and analytics tools to give you the best digital experience.  Find more information and details about how to switch them off in our Terms of Website Use and Privacy Policy.