Control of magnetic domain-wall polarization by means of angled Oersted field writing

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We propose a method to control the polarization of the magnetic domain walls (DWs) in ferromagnetic nanowires. Two neighboring DWs with antiparallel polarization alignment rather than parallel alignment are found to exhibit better stability with a helical magnetic structure that can be hardly be detangled. To achieve such an antiparallel alignment, two co-planar current lines with an angle to the nanowire are designed, from which the Oersted field creates a domain in between the current lines while keeping the polarization of the DWs beneath the current lines, as confirmed by a micromagnetic calculation for ferromagnetic nanowires with perpendicular magnetic anisotropy
Publisher
IOP PUBLISHING LTD
Issue Date
2011-01
Language
English
Article Type
Article
Keywords

NANOWIRES; NOTCHES

Citation

NANOTECHNOLOGY, v.22, no.2

ISSN
0957-4484
DOI
10.1088/0957-4484/22/2/025702
URI
http://hdl.handle.net/10203/214021
Appears in Collection
PH-Journal Papers(저널논문)
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