Stochastic vs. deterministic magnetic coding in designed cylindrical nanowires for 3D magnetic networks. Issue 29 (14th July 2021)

• Record Type: Journal Article
• Authors: Bran, Cristina; Saugar, Elias; Fernandez-Roldan, Jose Angel; del Real, Rafael P.; Asenjo, Agustina; Aballe, Lucia; Foerster, Michael; Fraile Rodríguez, Arantxa; Palmero, Ester M.; Vazquez, Manuel; Chubykalo-Fesenko, Oksana
• Is Part Of: Nanoscale. Volume 13:Issue 29(2021)
• Page Start: 12587
• Page End: 12593
• Publication Date: 2021-07-14
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d1nr02337c
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Control over the stochastic and deterministic coding of 3D vortex configurations in cylindrical multilayered nanowires. Abstract : Advances in cylindrical nanowires for 3D information technologies profit from intrinsic curvature that introduces significant differences with regards to planar systems. A model is proposed to control the stochastic and deterministic coding of remanent 3D complex vortex configurations in designed multilayered (magnetic/non-magnetic) cylindrical nanowires. This concept, introduced by micromagnetic simulations, is experimentally confirmed by magnetic imaging in FeCo/Cu multilayered nanowires. The control over the random/deterministic vortex states configurations is achieved by a suitable geometrical interface tilting of almost non-interacting FeCo segments with respect to the nanowire axis, together with the relative orientation of the perpendicular magnetic field. The proper design of the segments' geometry ( e.g. tilting) in cylindrical nanowires opens multiple opportunities for advanced nanotechnologies in 3D magnetic networks.