Print Email Facebook Twitter New magnetic phase of the chiral skyrmion material Cu2OSeO3 Title New magnetic phase of the chiral skyrmion material Cu2OSeO3 Author Qian, F. (TU Delft RST/Neutron and Positron Methods in Materials; Nanjing University) Bannenberg, L.J. (TU Delft RST/Neutron and Positron Methods in Materials) Wilhelm, Heribert (Diamond Light Source) Chaboussant, Grégory (CEA-Saclay) Debeer-Schmitt, Lisa M. (Oak Ridge National Laboratory) Schmidt, Marcus P. (Max Planck Institute for Chemical Physics of Solids) Aqeel, Aisha (Technische Universität München; Rijksuniversiteit Groningen) Palstra, Thomas T.M. (University of Twente; Rijksuniversiteit Groningen) Brück, E.H. (TU Delft RST/Fundamental Aspects of Materials and Energy) Lefering, A.J.E. (TU Delft RST/Fundamental Aspects of Materials and Energy) Pappas, C. (TU Delft RST/Neutron and Positron Methods in Materials) Mostovoy, Maxim (Rijksuniversiteit Groningen) Leonov, Andrey O. (Hiroshima University) Date 2018 Abstract The lack of inversion symmetry in the crystal lattice of magnetic materials gives rise to complex noncollinear spin orders through interactions of a relativistic nature, resulting in interesting physical phenomena, such as emergent electromagnetism. Studies of cubic chiral magnets revealed a universal magnetic phase diagram composed of helical spiral, conical spiral, and skyrmion crystal phases. We report a remarkable deviation from this universal behavior. By combining neutron diffraction with magnetization measurements, we observe a new multidomain state in Cu2OSeO3. Just below the upper critical field at which the conical spiral state disappears, the spiral wave vector rotates away from the magnetic field direction. This transition gives rise to large magnetic fluctuations. We clarify the physical origin of the new state and discuss its multiferroic properties. To reference this document use: http://resolver.tudelft.nl/uuid:7b52c689-59ba-4d7d-9c31-8477438f2fb2 DOI https://doi.org/10.1126/sciadv.aat7323 ISSN 2375-2548 Source Science Advances, 4 (9) Part of collection Institutional Repository Document type journal article Rights © 2018 F. Qian, L.J. Bannenberg, Heribert Wilhelm, Grégory Chaboussant, Lisa M. Debeer-Schmitt, Marcus P. Schmidt, Aisha Aqeel, Thomas T.M. Palstra, E.H. Brück, A.J.E. Lefering, C. Pappas, Maxim Mostovoy, Andrey O. Leonov Files PDF eaat7323.full.pdf 1.71 MB Close viewer /islandora/object/uuid:7b52c689-59ba-4d7d-9c31-8477438f2fb2/datastream/OBJ/view