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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2016

Manipulating the magnetization direction of transverse domain walls in Permalloy/Ir strips using nanosecond current pulses

Olivier Fruchart
Stefania Pizzini
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Nicolas Rougemaille
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Jean-Christophe Toussaint
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Jan Vogel

Résumé

Using magnetic force microscopy and micromagnetic simulations, we studied the effect of Oersted magnetic fields on the chirality of transverse magnetic domain walls in Fe$_{20}$Ni$_{80}$/Ir bilayer nanostrips. Applying nanosecond current pulses with a current density of around $2\times10^{12}$ A/m$^2$, the chirality of a transverse domain wall could be switched reversibly and reproducibly. These current densities are similar to the ones used for current-induced domain wall motion, indicating that the Oersted field may stabilize the transverse wall chirality during current pulses and prevent domain wall transformations.
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Dates et versions

hal-00919049 , version 1 (17-12-2013)

Identifiants

Citer

Zahid Ishaque, Van-Dai Nguyen, Olivier Fruchart, Stefania Pizzini, Nicolas Rougemaille, et al.. Manipulating the magnetization direction of transverse domain walls in Permalloy/Ir strips using nanosecond current pulses. Journal of Magnetism and Magnetic Materials, 2016, 397, pp.152-156. ⟨10.1016/j.jmmm.2015.08.062⟩. ⟨hal-00919049⟩

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