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MA: Fachverband Magnetismus

MA 1: Tutorial: Spin Hall Effect and Spin-Orbit Torques

MA 1.2: Tutorium

Sonntag, 6. März 2016, 17:00–17:45, H17

Magnetisation of ferromagnetic nanostructures manipulated by spin-orbit torques — •Stefania Pizzini — Institut Néel, CNRS, Grenoble, France

It has been shown recently that spin-orbit torques (SOT) associated to the spin-Hall effect, generated by the flow of an electrical current in the plane of a ferromagnetic/heavy metal bilayer, can be used as an efficient way to manipulate the magnetisation of nanostructures with broken inversion asymmety.

After an introduction to the microscopic origins of the SOT, I will give a review of recent experimental work showing the use of this mechanism to obtain both deterministic switching of nanosized magnets, and efficient propagation of domain walls in nanotracks consisting of ultrathin ferromagnetic layers with perpendicular magnetic anisotropy and strong Dzyaloshinskii-Moriya interaction.