Morphogenesis of spin cycloids in a noncollinear antiferromagnet

Image Credit: https://www.pnas.org/doi/10.1073/pnas.2423298122

A team of researchers led by Ramamoorthy Ramesh (UC Berkley / Rice) has uncovered new insights into the formation of complex spin textures in noncollinear antiferromagnets. In their recent study published in Proceedings of the National Academy of Sciences (PNAS), the team reports the emergence of labyrinthine spin cycloids, magnetic structures characterized by arrays of isolated and hybrid topological defects.

The experimental breakthrough was enabled by nanoscale magnetic imaging with the Qnami ProteusQ™ quantum microscope which allowed to directly reveal the intricate spin morphologies.

The discovery highlights how spin cycloids self-organize through competing interactions, opening new avenues for understanding topological defect dynamics and the broader principles of pattern formation in correlated electron systems. 

Read more: S.K. Ojha,P. Pal,S. Prokhorenko,S. Husain,M. Ramesh,X. Li,D. Kang,P. Meisenheimer,D.G. Schlom,P. Stevenson,L. Caretta,Y. Nahas,Y. Han,L.W. Martin,L. Bellaiche,C. Eom, & R. Ramesh, Morphogenesis of spin cycloids in a noncollinear antiferromagnet, Proc. Natl. Acad. Sci. U.S.A. 122 (17) e2423298122, https://doi.org/10.1073/pnas.2423298122 (2025).

See more applications

Spatial Resolution in Scanning NV Magnetometry – Technical Note

This technical note explains how spatial resolution is defined in Scanning NV Magnetometry. For a given distance d between the NV center and the scanned surface, the best achievable lateral spatial resolution is 0.86 d.

Magnon spin diffusion across 180-degree domain walls

ProteusQ combined with AI-based tools allows researchers to unveil for the first time puzzling magnon dynamics through magnetic domain walls.

Exotic antiferromagnetic spin cycloids in bismuth ferrite thin films

Scanning NV Magnetometry unlocks the characterization of the effects of strain and electrical fields on exotic antiferromagnetic spin textures in multiferroics.

Want to know more?

Talk to us - our Application Scientist is happy to talk with you about what you can do with our Scanning NV Magnetometer ProteusQ.
We are using cookies and analytics tools to give you the best digital experience.
AcceptPrivacy Settings

GDPR

  • 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.