CUED Publications database

Control of magnetic vortex chirality and polarization in indented and notched nanomagnetic disks

El-Mezeini, AM and Flack, TJ and Welland, ME (2015) Control of magnetic vortex chirality and polarization in indented and notched nanomagnetic disks. Materials Research Express, 1.

Full text not available from this repository.

Abstract

© 2014 IOP Publishing Ltd. Magnetic vortex dynamics in nanoscale structures is currently a topic of intensive research not only from a fundamental physics point of view but also for their potential use in future generation spintronics and magnetic random access memories. We propose a method, where one can independently control the magnetic vortex polarization and chirality states by a combination of finetuning the applied magnetic field and breaking the geometrical symmetry of the magnetic nanostructure. Numerical simulations corroborate our proposal of achieving vortex switchability for the two different geometries we investigate: the indented disk and notched disk structures. Our results suggest that the notched disk structure offers more robust vortex dynamics and better switching characteristics, which makes this geometry ideal for use as a vortex-based magnetic memory device.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:41
Last Modified: 03 Aug 2017 03:12
DOI: