Newly published paper on topological defects in antiferromagnets

Dr. Aurore Finco and collaborators reported the observation of topological defects at the surface of bulk bismuth ferrite crystals at room temperature. These results show for the first time the presence of such magnetic objects in multiferroics antiferromagnets, providing new avenues for their use in spintronics.

Thanks to the extremely high sensitivity and spatial resolution of Qnami Quantilevers, the team managed to image such topological defects as complex whirling structures generated at the junctions between different antiferromagnetic domains.

We congratulate Dr. Aurore Finco and her collaborators (coming from Laboratoire Chrales Coulomb – Université de Montpellier and CNRS, Unité Mixte de Physique – CNRS and Thales, SPEC CEA, Université Paris-Saclay and CNRS, and  ) for their groundbreaking results recently published in Physical Review Letter (May 4, 2022) and selected as the editors’ suggestion.

Read more about the paper on our application page.

Qnami Quantilevers | The product on the Spotlight

Quantilevers are diamond probes made with NV centers for scanning NV microscopy applications.

We designed this patented technology in our laboratory in Switzerland for optimised optical throughput and unique resolution. Our Quantilevers operate best with the Qnami ProteusQ, but can also be used in custom environments.

Qnami Quantilever MX - All diamond probes made with NV centers for Scanning NV magnetometry.

Are you interested in exploring the possibility to use Qnami Quantilevers and Qnami ProteusQ for your own research? Contact our Technical Sales Manager, Dr. Joerg Lenz (

Scanning NV Magnetometry unlocks research potential. Will your applications be the next one?

Scanning NV Magnetometry is unlocking more and more applications in the field of nanoscale magnetism. Can yours be the next one? We can find it out together. Drop an email to our Application Scientist Dr. Peter Rickhaus (  We would be happy to talk with you.

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