Fig. 1: Schematic, hysteresis loop, and device structure of multilayer SF skyrmions. | Nature Communications

Fig. 1: Schematic, hysteresis loop, and device structure of multilayer SF skyrmions.

From: Topological transformation of synthetic ferromagnetic skyrmions: thermal assisted switching of helicity by spin-orbit torque

Fig. 1

a Schematic diagram of the Ta(3)/[Pt(0.5)/Co(0.5)]3/Ru(1.8)/[Co(0.5)/Pt(0.5)]3/Ta(3) multilayers. The number in parentheses is the thickness of each layer in nanometers. b Hysteresis loop of the sample measured by MOKE microscope with out-of-plane field. c Schematic of the device and the SF skyrmions. The red arrows indicate the chirality of the skyrmion in the top FM layer.

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