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Neutrons detect novel nano vortices

For the first time, researchers have created antiferromagnetic skyrmions, in which key elements are arranged in opposite directions. They demonstrated this phenomenon using neutrons at the cold three axes spectrometer PANDA, which is operated by the Jülich Centre for Neutron Science at its outstation at the Heinz Maier-Leibnitz Zentrum (MLZ), as well as at two other neutron sources in Switzerland and France. The discovery, published in Nature, could make it possible to develop more efficient computers in the future.

Astrid Schneidewind Dr. Astrid Schneidewind heads the team at the instrument PANDA at the Heinz Maier-Leibnitz Zentrum. She and her colleague Petr Cermak helped to detect the antiferromagnetic skyrmions using inelastic neutron scattering.
Copyright: Wolfgang Filser / TUM

Original publication:
Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings. S. Gao, H.D. Rosales, F.A. Gómez Albarracín, V. Tsurkan, G. Kaur, T. Fennell, P. Steffens, M. Boehm, P. Čermák, A. Schneidewind, E. Ressouche, D.C. Cabra, C. Rüegg, O. Zaharko. Nature 23 September 2020 (online). DOI: 10.1038/s41586-020-2716-8

Further Information:

MLZ news item published on 28 September 2020

PSI press release published on 23 September 2020