Dynamic propagation and nucleation in domain wall nanowire devices.
J Phys Condens Matter
; 24(2): 024222, 2012 Jan 18.
Article
em En
| MEDLINE
| ID: mdl-22172984
ABSTRACT
The dynamic injection and propagation of domain walls (DWs) in technologically relevant geometries have been investigated. On short (~10 ns) timescales nucleation of a DW by a localized Oersted field is found to be well described using a Néel-Brown reversal mode. Using locally injected DWs, we test the propagation of DWs over long distances (~100 µm) in close proximity nanowires and beyond the Walker breakdown limit. In nanowires that act as true conduits to a DW, data can be successfully propagated without loss or inter-wire cross-talk. This is in contrast to poorly characterized systems where the DW is found to propagate asynchronously above the critical breakdown field.
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MEDLINE
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En
Ano de publicação:
2012
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Article