Fast current-induced skyrmion motion in synthetic antiferromagnets - Archive ouverte HAL Access content directly
Journal Articles Science Year : 2024

Fast current-induced skyrmion motion in synthetic antiferromagnets

Andrea Locatelli
Tevfik Onur Menteş
Stefania Pizzini
Pawan Kumar
Aurore Finco
Vincent Jacques
Gilles Gaudin
Olivier Boulle

Abstract

Magnetic skyrmions are topological magnetic textures that hold great promise as nanoscale bits of information in memory and logic devices. Although room-temperature ferromagnetic skyrmions and their current-induced manipulation have been demonstrated, their velocity has been limited to about 100 meters per second. In addition, their dynamics are perturbed by the skyrmion Hall effect, a motion transverse to the current direction caused by the skyrmion topological charge. Here, we show that skyrmions in compensated synthetic antiferromagnets can be moved by current along the current direction at velocities of up to 900 meters per second. This can be explained by the cancellation of the net topological charge leading to a vanishing skyrmion Hall effect. Our results open an important path toward the realization of logic and memory devices based on the fast manipulation of skyrmions in tracks.
Fichier principal
Vignette du fichier
add5751_ArticleContent_v15_FINAL_ACCEPTED.pdf (5.13 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-04553207 , version 1 (19-04-2024)

Licence

Identifiers

Cite

van Tuong Pham, Naveen Sisodia, Ilaria Di Manici, Joseba Urrestarazu-Larrañaga, Kaushik Bairagi, et al.. Fast current-induced skyrmion motion in synthetic antiferromagnets. Science, 2024, 384 (6693), pp.307-312. ⟨10.1126/science.add5751⟩. ⟨hal-04553207⟩
58 View
98 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More