Eastwood, DS;
King, JA;
Bogart, LK;
Cramman, H;
Atkinson, D;
(2011)
Chirality-dependent domain wall pinning in a multinotched planar nanowire and chirality preservation using transverse magnetic fields.
Journal of Applied Physics
, 109
(1)
, Article 013903. 10.1063/1.3525733.
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Abstract
Chirality-dependent pinning of magnetic domain walls (DWs) has been observed in a planar Ni81Fe19Ni81Fe19 nanowire with two spatially separated notches on opposite edges of the wire. Using focused magneto-optical Kerr effect measurements of field-driven magnetization reversal we show that several different metastable remanent magnetization states can be formed reproducibly, and that the application of a component of magnetic field transverse to the wire axis maintains the chirality of DW as it interacts with both notches and overcomes the problems of chirality loss due to Walker breakdown.
| Type: | Article |
|---|---|
| Title: | Chirality-dependent domain wall pinning in a multinotched planar nanowire and chirality preservation using transverse magnetic fields |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/1.3525733 |
| Publisher version: | https://doi.org/10.1063/1.3525733 |
| Language: | English |
| Additional information: | This is the published version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1573718 |
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