Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices
| Autor: | Catherine Pappas, N. Martin, Heribert Wilhelm, Robert M. Dalgliesh, L. J. Bannenberg, Deborah L. Schlagel, Grégory Chaboussant, T.A. Lograsso, F. Qian, Marcus Schmidt |
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| Přispěvatelé: | Delft University of Technology (TU Delft), Rutherford Appleton Lab, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England, 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, Max Planck Institute for Chemical Physics of Solids (CPfS), Max-Planck-Gesellschaft, Ames Laboratory [Ames, USA], Iowa State University (ISU)-U.S. Department of Energy [Washington] (DOE), Iowa State University (ISU), DIAMOND Light source, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
High Energy Physics::Lattice
FOS: Physical sciences 02 engineering and technology Neutron scattering Kinetic energy 01 natural sciences Condensed Matter - Strongly Correlated Electrons Lattice (order) Metastability 0103 physical sciences Perpendicular [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall] Physics Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Skyrmion 021001 nanoscience & nanotechnology 3. Good health Magnetic field Magnet Quantum electrodynamics [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Condensed Matter::Strongly Correlated Electrons [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el] 0210 nano-technology |
| Zdroj: | Physical Review B (Condensed Matter and Materials Physics), 96(184416) Physical Review B: Condensed Matter and Materials Physics (1998-2015) Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2017, 96 (18), ⟨10.1103/PhysRevB.96.184416⟩ Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2017, 96 (18), ⟨10.1103/PhysRevB.96.184416⟩ |
| ISSN: | 1098-0121 1550-235X |
| DOI: | 10.1103/PhysRevB.96.184416⟩ |
| Popis: | Magnetic skyrmions are nano-sized topologically protected spin textures with particle-like properties. They can form lattices perpendicular to the magnetic field and the orientation of these skyrmion lattices with respect to the crystallographic lattice is governed by spin-orbit coupling. By performing small angle neutron scattering measurements, we investigate the coupling between the crystallographic and skyrmion lattices in both Cu$_2$OSeO$_3$ and the archetype chiral magnet MnSi. The results reveal that the orientation of the skyrmion lattice is primarily determined by the magnetic field direction with respect to the crystallographic lattice. In addition, it is also influenced by the magnetic history of the sample which can induce metastable lattices. Kinetic measurements show that these metastable skyrmion lattices may or may not relax to their equilibrium positions under macroscopic relaxation times. Furthermore, multidomain lattices may form when two or more equivalent crystallographic directions are favored by spin-orbit coupling and oriented perpendicular to the magnetic field. Comment: Supplementory movie 4 is not uploaded due to size restrictions but is available upon request |
| Databáze: | OpenAIRE |
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