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MA: Fachverband Magnetismus

MA 19: POSTER Ia

MA 19.7: Poster

Dienstag, 17. März 2015, 09:30–13:00, Poster A

Magneto-optical study of the insulating helimagnet Cu₂OSeO₃ — Rolf B. Versteeg¹, •Simon Schäfer¹, Aisha Aqeel², Graeme R. Blake², Thomas T.M. Palstra², and Paul H.M. van Loosdrecht¹ — ¹II. Physikalisches Institut, Universität zu Köln, 50937 Cologne, Germany — ²Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands

The Mott insulator Cu₂OSeO₃ has recently gained considerable scientific interest owing to the presence of a Skyrmion lattice phase. We report our findings of a comprehensive study of the magneto-optical properties of bulk Cu₂OSeO₃. The different optical transitions observed in the light polarization rotation spectra allow us to map out the magnetic phase diagram of Cu₂OSeO₃.