Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 10: Skyrmions I (joint session MA/KFM/TT)

MA 10.8: Vortrag

Montag, 12. März 2018, 17:15–17:30, EB 301

Orientation dependence of the magnetic phase diagram of the chiral magnet Cu₂OSeO₃ — •Marco Halder¹, Alfonso Chacon¹, Andreas Bauer¹, Helmuth Berger², and Christian Pfleiderer¹ — ¹Technische Universität München, Physik-Department E21, D-85748 Garching, Germany — ²École Polytechnique Fédérale de Lausanne, Crystal Growth Facility, CH-1015 Lausanne, Switzerland

In recent years, the cubic chiral insulator Cu₂OSeO₃ attracted great scientific interest, combing the skyrmion lattice phase with strong magneto-electric coupling. We report a comprehensive study of the magnetic properties of single-crystal Cu₂OSeO₃ by means of measurements of the magnetization, ac susceptibility, and specific heat, in particular tracking the influence of crystal orientation, cooling history and demagnetizing effects on the formation of skyrmion order.