Current Induced Vortex Wall Dynamics in Helical Magnetic Systems
dc.contributor.author | Roostaei, Bahman | |
dc.contributor.department | Department of Physics, School of Science | en_US |
dc.date.accessioned | 2015-12-09T16:28:04Z | |
dc.date.available | 2015-12-09T16:28:04Z | |
dc.date.issued | 2015-03 | |
dc.description.abstract | Nontrivial topology of interfaces separating phases with opposite chirality in helical magnetic metals result in new effects as they interact with spin polarized current. These interfaces or vortex walls consist of a one dimensional array of vortex lines. We predict that adiabatic transfer of angular momentum between vortex array and spin polarized current will result in topological Hall effect in multi-domain samples. Also we predict that the motion of the vortex array will result in a new damping mechanism for magnetic moments based on Lenz’s law. We study the dynamics of these walls interacting with electric current and use fundamental electromagnetic laws to quantify those predictions. On the other hand discrete nature of vortex walls affects their pinning and results in low depinning current density. We predict the value of this current using collective pinning theory. | en_US |
dc.eprint.version | Final published version | en_US |
dc.identifier.citation | Roostaei, B. (2015). Current induced vortex wall dynamics in helical magnetic systems. The European Physical Journal B, 88(3), 1–5. http://doi.org/10.1140/epjb/e2015-50535-6 | en_US |
dc.identifier.uri | https://hdl.handle.net/1805/7650 | |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.isversionof | 10.1140/epjb/e2015-50535-6 | en_US |
dc.relation.journal | The European Physical Journal B | en_US |
dc.rights | IUPUI Open Access Policy | en_US |
dc.source | ArXiv | en_US |
dc.subject | solid state and materials | en_US |
dc.subject | helical magnetic systems | en_US |
dc.title | Current Induced Vortex Wall Dynamics in Helical Magnetic Systems | en_US |
dc.type | Article | en_US |