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Electrical detection and nucleation of a magnetic skyrmion in a magnetic tunnel junction observed via operando magnetic microscopy
by J. Urrestarazu Larrañaga, Naveen Sisodia, Van Tuong Pham +13
Magnetic skyrmions are topological spin textures which are envisioned as nanometre scale information carriers in magnetic memory and logic devices. The recent demonstration of room…
Skyrmions in synthetic antiferromagnets and their nucleation via electrical current and ultrafast laser illumination
Roméo Juge, Naveen Sisodia, Joseba Urrestarazu Larrañaga +24
Magnetic skyrmions are topological spin textures that hold great promise as nanoscale information carriers in non-volatile memory and logic devices. While room-temperature magnetic…
Large-scale epitaxy of two-dimensional van der Waals room-temperature ferromagnet Fe5GeTe2
Mário Ribeiro, Giulio Gentile, Alain Marty +12
In recent years, two-dimensional van der Waals materials have emerged as an important platform for the observation of long-range ferromagnetic order in atomically thin layers. Alth…
Imprint from ferromagnetic skyrmions in an antiferromagnet via exchange bias
Kumari Gaurav Rana, Rafael Lopes Seeger, Sandra Ruiz-Gómez +11
Magnetic skyrmions are topological spin textures holding great potential as nanoscale information carriers. Recently, skyrmions have been predicted in antiferromagnets, with key ad…
Room temperature skyrmions at zero field in exchange-biased ultrathin films
K. Gaurav Rana, A. Finco, F. Fabre +12
We demonstrate that magnetic skyrmions with a mean diameter around 60 nm can be stabilized at room temperature and zero external magnetic field in an exchange-biased Pt/Co/NiFe/IrM…
Creation of Magnetic Skyrmion Bubble Lattices by Ultrafast Laser in Ultrathin Films
Soong-Geun Je, Pierre Vallobra, Titiksha Srivastava +10
Magnetic skyrmions are topologically nontrivial spin textures which hold great promise as stable information carriers in spintronic devices at the nanoscale. One of the major chall…
Large voltage tuning of Dzyaloshinskii-Moriya Interaction: a route towards dynamic control of skyrmion chirality
Titiksha Srivastava, Marine Schott, Roméo Juge +14
Electric control of magnetism is a prerequisite for efficient and low power spintronic devices. More specifically, in heavy metal/ ferromagnet/ insulator heterostructures, voltage…
Controlling Dzyaloshinskii-Moriya Interaction via Chirality Dependent Layer Stacking, Insulator Capping and Electric Field
Hongxin Yang, Olivier Boulle, Vincent Cros +2
Using first-principle calculations, we demonstrate several approaches to manipulate Dzyaloshinskii-Moriya Interaction (DMI) in ultrathin magnetic films. First, we find that DMI is…
Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
Olivier Boulle, Jan Vogel, Hongxin Yang +16
Magnetic skyrmions are chiral spin structures with a whirling configuration. Their topological properties, nanometer size and the fact that they can be moved by small current densi…
Ultra-fast perpendicular Spin Orbit Torque MRAM
Murat Cubukcu, Olivier Boulle, Nikolaï Mikuszeit +14
We demonstrate ultra-fast (down to 400 ps) bipolar magnetization switching of a three-terminal perpendicular Ta/FeCoB/MgO/FeCoB magnetic tunnel junction. The critical current densi…
Chirality-induced asymmetric magnetic nucleation in Pt/Co/AlOx ultrathin microstructures
Stefania Pizzini, Jan Vogel, Stanislas Rohart +8
The nucleation of reversed magnetic domains in Pt/Co/AlO microstructures with perpendicular anisotropy was studied experimentally in the presence of an in-plane magnetic fiel…
Current induced domain wall dynamics in the presence of spin orbit torques
O. Boulle, L. D. Buda-Prejbeanu, E. Jué +2
Current induced domain wall (DW) motion in perpendicularly magnetized nanostripes in the presence of spin orbit torques is studied. We show using micromagnetic simulations that the…
Spin-orbit-torque magnetization switching of a three terminal perpendicular magnetic tunnel junction
Murat Cubukcu, Olivier Boulle, Marc Drouard +7
We report on the current-induced magnetization switching of a three-terminal perpendicular magnetic tunnel junction by spin-orbit torque and the read-out using the tunnelling magne…
Domain wall tilting in the presence of the Dzyaloshinskii-Moriya interaction in out-of-plane magnetized magnetic nanotracks
O. Boulle, S. Rohart, L. D. Buda-Prejbeanu +6
We show that the Dzyaloshinskii-Moriya interaction (DMI) can lead to a tilting of the domain wall (DW) surface in perpendicularly magnetized magnetic nanotracks when DW dynamics is…
Electric-field control of domain wall nucleation and pinning in a metallic ferromagnet
A. Bernand-Mantel, L. Herrera-Diez, L. Ranno +7
The electric (E) field control of magnetic properties opens the prospects of an alternative to magnetic field or electric current activation to control magnetization. Multilayers w…
Direct Observation of Massless Domain Wall Dynamics in Nanostripes with Perpendicular Magnetic Anisotropy
Jan Vogel, Marlio Bonfim, Nicolas Rougemaille +8
Domain wall motion induced by nanosecond current pulses in nanostripes with perpendicular magnetic anisotropy (Pt/Co/AlO) is shown to exhibit negligible inertia. Time-resolved…