New magnetic phase of the chiral skyrmion material Cu2OSeO3
| Autor: | Andrey O. Leonov, Heribert Wilhelm, Grégory Chaboussant, F. Qian, Thomas Palstra, Aisha Aqeel, Catherine Pappas, Lisa DeBeer-Schmitt, Marcus Schmidt, Ekkes Brück, A. J. E. Lefering, L. J. Bannenberg, Maxim Mostovoy |
|---|---|
| Přispěvatelé: | Delft University of Technology (TU Delft), DIAMOND Light source, Laboratoire Léon Brillouin (LLB - UMR 12), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Oak Ridge National Laboratory [Oak Ridge] (ORNL), UT-Battelle, LLC, Solid State Materials for Electronics, Theory of Condensed Matter, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
DYNAMICS
Neutron diffraction FOS: Physical sciences 02 engineering and technology 01 natural sciences Magnetization Condensed Matter - Strongly Correlated Electrons Electromagnetism 0103 physical sciences 010306 general physics Critical field [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall] Physics Condensed Matter - Materials Science Multidisciplinary Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Skyrmion Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology Magnetic field LATTICE ROOM-TEMPERATURE FERROMAGNETS Ferromagnetism Magnet MNSI [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el] 0210 nano-technology TRANSITION |
| Zdroj: | Science Advances Science Advances, American Association for the Advancement of Science (AAAS), 2018, 4 (9), pp.eaat7323. ⟨10.1126/sciadv.aat7323⟩ Science Advances, 4(9):7323. AMER ASSOC ADVANCEMENT SCIENCE Science Advances, 4(9) Science Advances, 2018, 4 (9), pp.eaat7323. ⟨10.1126/sciadv.aat7323⟩ |
| ISSN: | 2375-2548 |
| DOI: | 10.1126/sciadv.aat7323⟩ |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|