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Optimized cobalt nanowires for domain wall manipulation imaged by in situ Lorentz microscopy

Optimized cobalt nanowires for domain wall manipulation imaged by in situ Lorentz microscopy

Authors :
European Commission
Ministerio de Economía y Competitividad (España)
Junta de Castilla y León
Rodríguez, Luis A.
Magén, César
Snoeck, Etienne
Serrano-Ramón, Luis
Córdoba, R.
Teresa, José María de
Ibarra, M. Ricardo
European Commission
Ministerio de Economía y Competitividad (España)
Junta de Castilla y León
Rodríguez, Luis A.
Magén, César
Snoeck, Etienne
Serrano-Ramón, Luis
Córdoba, R.
Teresa, José María de
Ibarra, M. Ricardo
Publication Year :
2013

Abstract

Direct observation of domain wall (DW) nucleation and propagation in focused electron beam induced deposited Co nanowires as a function of their dimensions was carried out by Lorentz microscopy (LTEM) upon in situ application of magnetic field. Optimal dimensions favoring the unambiguous DW nucleation/propagation required for applications were found in 500-nm-wide and 13-nm-thick Co nanowires, with a maximum nucleation field and the largest gap between nucleation and propagation fields. The internal DW structures were resolved using the transport-of-intensity equation formalism in LTEM images and showed that the optimal nanowire dimensions correspond to the crossover between the nucleation of transverse and vortex walls.

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1103405075
Document Type :
Electronic Resource