Fast domain wall motion governed by topology and OErsted fields in cylindrical magnetic nanowires
| Autor: | C. Thirion, Laurent Cagnon, Michael Foerster, Julien Bachmann, T. O. Menteş, Andrea Locatelli, Jean-Christophe Toussaint, M. Schöbitz, Steve W. Martin, Jan Vogel, Olivier Fruchart, Francesca Genuzio, Sebastian Bochmann, Lucia Aballe, A. De Riz, S. Le-Denmat, D. Gusakova |
|---|---|
| Přispěvatelé: | Micro et NanoMagnétisme (NEEL - MNM), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), SPINtronique et TEchnologie des Composants (SPINTEC), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), ALBA Synchrotron light source [Barcelone], Elettra Sincrotrone Trieste, Optique & Microscopies (NEEL - POM), ANR-10-LABX-0051,LANEF,Laboratory of Alliances on Nanosciences - Energy for the Future(2010), ANR-17-CE24-0017,MATEMAC-3D,Manipulation de textures magnétiques par courant – modélisation 3D par éléments finis(2017), European Project: 730872,CALIPSOplus, Micro et NanoMagnétisme (MNM ), Optique et microscopies (POM) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Magnetic domain Field (physics) General Physics and Astronomy Context (language use) Type (model theory) Topology 01 natural sciences Domain wall (magnetism) Ferromagnetism Spin wave 0103 physical sciences [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] 010306 general physics Realization (systems) |
| Zdroj: | Physical Review Letters Physical Review Letters, 2019, 123 (21), pp.217201. ⟨10.1103/PhysRevLett.123.217201⟩ Physical Review Letters, American Physical Society, 2019, 123 (21), pp.217201. ⟨10.1103/PhysRevLett.123.217201⟩ |
| ISSN: | 0031-9007 1079-7114 |
| Popis: | While the usual approach to tailor the behavior of condensed matter and nanosized systems is the choice of material or finite-size or interfacial effects, topology alone may be the key. In the context of the motion of magnetic domain walls (DWs), known to suffer from dynamic instabilities with low mobilities, we report unprecedented velocities $g600\text{ }\text{ }\mathrm{m}/\mathrm{s}$ for DWs driven by spin-transfer torques in cylindrical nanowires made of a standard ferromagnetic material. The reason is the robust stabilization of a DW type with a specific topology by the \OE{}rsted field associated with the current. This opens the route to the realization of predicted new physics, such as the strong coupling of DWs with spin waves above $g600\text{ }\text{ }\mathrm{m}/\mathrm{s}$. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|