Newly published scientific breakthrough in the field of hybrid magnonics facilitated by Qnami ProteusQ

A group of scientists lead by Prof. Haiming Yu (Beihang University, Beijing, China) recently published groundbreaking results that push the frontiers of the quickly emerging field of hybrid magnonics.

Researchers showed for the first time that magnons, the particle counterparts of a spin-wave, can propagate for up to 1 mm in a multiferroic/ferromagnetic heterostructure at room temperature.  These results not only shed light on the longstanding topic of magnon decay length in metallic magnets, but also push the frontiers of the rapidly emerging field of hybrid magnonics.

Qnami ProteusQ enabled the team to quantitatively characterize the homogeneity and periodicity of the stray magnetic fields of the samples that could barely be measured by Magnetic Force Microscopy.

Jianyu Zhang (Beihang University, China), first author of the paper describes the impact of Qnami ProteusQ in this work:

“In our experiment, the stripe domain’s stray field pattern, its orientation and degree of regularity is clearly discernible from the photoluminescence contrast of the scanning nitrogen-vacancy magnetometer Qnami ProteusQ. We hope to use such advanced and high-precision technique to explore more interesting ferromagnetic and antiferromagnetic spin textures.” 

We congratulate Prof. Haiming Yu and his collaborators (at Beihang University, Tsinghua University, SUSTECH, RIKEN, EPFL, Peking University, University of Basel, University of Chinese Academy of Sciences) for publishing these results in Nature Communications (December 14, 2021). Read more about the paper on our application page.

Qnami ProteusQ | The product on the Spotlight

Qnami ProteusQ is a complete quantum microscope system. It is the first scanning NV (nitrogen-vacancy) microscope for the analysis of magnetic materials at the atomic scale. The Qnami ProteusQ system comes with state-of-the-art electronics and software. Its flexible design allows for future adjustments and scaling, expansion and capability upgrades. The proprietary Qnami ProteusQ quantum technology provides high precision images for you to see directly the most subtle properties of your samples and the effect of microscopic changes in your design or fabrication process. 

Qnami ProteusQ

Are you interested in the Qnami ProteusQ microscope for your own lab? Contact our Technical Sales Manager, Dr. Joerg Lenz (

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.

About Qnami: Qnami is a VC-backed high-tech company with its roots at the Physics Department of the University of Basel in Switzerland. It develops fundamental new technology using quantum mechanics. The control of the state of a single electron enables measurement with a precision that could never be achieved before. The technique is called quantum sensing and Qnami is enthusiastically developing it to improve people’s lives and the world. Extensive academic research and deep knowledge build the ground for all that Qnami does. With this technology, Qnami is redefining the common understanding of precision. Qnami offers an open team culture of mutual respect and intercultural understanding which is both business and scientific minded. Qnami attracts young, multicultural, open and skilled team members, who have a deep passion for the work. 

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