Cited 0 time in webofscience Cited 1 time in scopus

Precession-torque-driven domain-wall motion in out-of-plane materials

Title
Precession-torque-driven domain-wall motion in out-of-plane materials
Authors
Peeters, M.J.G.[Peeters, M. J. G.]Ummelen, F.C.[Ummelen, Fanny C.]Lalieu, M.L.M.[Lalieu, M. L. M.]Kim, J.-S.[Kim, June Seo]Swagten, H.J.M.[Swagten, H. J. M.]Koopmans, B.[Koopmans, Bert]
DGIST Authors
Kim, J.-S.[Kim, June Seo]
Issue Date
2017
Citation
AIP Advances, 7(5)
Type
Article
Article Type
Article
Keywords
Digital StorageDirect DetectionDomain Wall MotionDomain WallsDriving MechanismDzyaloshinskii-Moriya InteractionEnergy LandscapeMagnetic Field PulseMagnetic StorageMultiple DomainsOne-Dimensional (1D) ModelsTorque
ISSN
2158-3226
Abstract
Domain-wall (DW) motion in magnetic nanostrips is intensively studied, in particular because of the possible applications in data storage. In this work, we will investigate a novel method of DW motion using magnetic field pulses, with the precession torque as the driving mechanism. We use a one dimensional (1D) model to show that it is possible to drive DWs in out-of-plane materials using the precession torque, and we identify the key parameters that influence this motion. Because the DW moves back to its initial position at the end of the field pulse, thereby severely complicating direct detection of the DW motion, depinning experiments are used to indirectly observe the effect of the precession torque. The 1D model is extended to include an energy landscape in order to predict the influence of the precession torque in the depinning experiments. Although preliminary experiments did not yet show an effect of the precession torque, our calculations indicate that depinning experiments can be used to demonstrate this novel method of DW motion in out-of-plane materials, which even allows for coherent motion of multiple domains when the Dzyaloshinskii-Moriya interaction is taken into account. © 2017 Author(s).
URI
http://hdl.handle.net/20.500.11750/2084
DOI
10.1063/1.4975048
Publisher
American Institute of Physics Inc.
Files:
There are no files associated with this item.
Collection:
DGIST-LBNL Research Center for Emerging Materials1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE