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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Toussaint, Jean-Christophe
Institutul Naţional al Patrimoniului
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2021Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domainscitations
- 2021Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domainscitations
- 2020Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domains, including OErsted field and spin-transfer torques
- 2017Probing domain walls in cylindrical magnetic nanowires with electron holographycitations
- 2016Manipulating the magnetization direction of transverse domain walls in Permalloy/Ir strips using nanosecond current pulsescitations
- 2015Head-to-head domain walls in one-dimensional nanostructures: an extended phase diagram ranging from strips to cylindrical wirescitations
- 2012Phase diagram of magnetic domain walls in spin valve nano-stripescitations
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document
Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domains, including OErsted field and spin-transfer torques
Abstract
We report a theoretical overview of the magnetic domain wall behavior under an electric current in infinitely-long nanotubes with azimuthal magnetization, combining the $1$D analytic model and micromagnetic simulations. We highlight effects that, besides spin-transfer torques already largely understood in flat strips, arise specifically in the tubular geometry: thefield and curvature-induced magnetic anisotropy resulting both from exchange and material growth. Depending on both the geometry of the tube and the strength of the azimuthal anisotropy, Bloch or N\'eel walls arise at rest, resulting in two regimes of motion largely dominated by either spin-transfer torques or thefield. We determine the Walker breakdown current in all cases, and highlight the most suitable parameters to achieve high domain wall speed.