McGrouther, D. , McVitie, S., Chapman, J.N. and Gentils, A. (2007) Controlled domain wall injection into ferromagnetic nanowires from an optimized pad geometry. Applied Physics Letters, 91(2), 022506. (doi: 10.1063/1.2753541)
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Publisher's URL: http://dx.doi.org/10.1063/1.2753541
Abstract
The authors present an improved geometry for a micron-scale pad for the injection of vortex domain walls (VDWs) into ferromagnetic nanowires. The pad supports a single vortex magnetization state, the chirality of which can be controlled simply by field saturation along a specific direction. We show, using Lorentz transmission electron microscopy, that utilization of such pads allows the chirality of VDWs injected into the attached wire to be predetermined. Furthermore, the pad vortex state is highly stable and survives repeated injection and depinning of VDWs from an asymmetric notch located some distance along the wire.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | McGrouther, Dr Damien and McVitie, Professor Stephen and Chapman, Professor John |
| Authors: | McGrouther, D., McVitie, S., Chapman, J.N., and Gentils, A. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Applied Physics Letters |
| ISSN: | 0003-6951 |
| ISSN (Online): | 1077-3118 |
| Published Online: | 12 July 2007 |
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