A magnetic force microscopy study of the magnetic reversal of a single Fe nanowire.
Nanotechnology
; 20(10): 105707, 2009 Mar 11.
Article
em En
| MEDLINE
| ID: mdl-19417535
ABSTRACT
The magnetization reversal properties of a single 60 nm diameter Fe nanowire were investigated with an in-field magnetic force microscope (MFM). MFM images were observed in a successively decreasing applied field, at various angles between the applied field and the nanowire axis. The results show that the magnetization undergoes a sharp reversal at various angles. When the applied field deviates from the nanowire axis, before complete magnetization reversal, a coherent rotation of magnetic moments inside the nanowire and a stable vortex state at the end of the nanowire are exhibited. The angle dependence of the switching field can be closely described by a curling model, despite the fact the magnetization reversal process is not identical to this model.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Microscopia de Força Atômica
/
Nanotecnologia
/
Nanotubos
/
Ferro
/
Magnetismo
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article