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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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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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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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Rohart, Stanislas
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Topics
Publications (8/8 displayed)
- 2023Unusual domain wall motion in the vicinity of the depinning field in a Pt/CoFeB/MgO filmcitations
- 2023Driving skyrmions with low threshold current density in Pt/CoFeB thin filmcitations
- 2023Driving skyrmions with low threshold current density in Pt/CoFeB thin filmcitations
- 2021Chiral magnetic domain walls under transverse fields: a semi-analytical model
- 2018Brownian motion of magnetic domain walls and skyrmions, and their diffusion constants ; Sur le mouvement brownien des parois et skyrmions magnétiques, et leurs constantes de diffusioncitations
- 2018Velocity enhancement by synchronization of magnetic domain wallscitations
- 2016Domain wall dynamics in ultrathin Pt/Co/AlOx microstrips under large combined magnetic fieldscitations
- 2015Highly asymmetric magnetic domain wall propagation due to coupling to a periodic pinning potentialcitations
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article
Domain wall dynamics in ultrathin Pt/Co/AlOx microstrips under large combined magnetic fields
Abstract
The dynamics of magnetic domain walls in ultrathin strip-patterned Pt/Co/AlOx samples with perpendicular easy axis has been studied experimentally under an easy-axis field, superposed to a hard-axis field oriented along the strip. The easy-axis field is large so that the domain walls move well beyond the creep regime. A chiral effect is observed where the domain wall velocity shows a monotonous and surprisingly large variation with an in-plane field. A micromagnetic analysis, combining analytic, one-dimensional, and two-dimensional simulations with structural disorder, shows that this behavior can be reproduced with a Dzyaloshinskii-Moriya interaction of the interfacial type, with due consideration of the dynamics of the tilt degree of freedom of the domain wall. The estimated effective value of this interaction (D≈−2.2mJ/m2 for a 0.6 nm Co thickness) is consistent with values obtained by other techniques. It is also shown, by micromagnetic analysis, that several modes and characteristic times occur in the dynamics of the tilt of such domain walls.