Double-Vortex States (IMAGE)
Caption
Shown are four examples of the double-vortex states investigated with opposite vorticity. In each disk, the flat yellow arrows represent the sense of the circulation of the in-plane magnetization component. The red and green arrows indicate the polarity of the vortex core. The tiny core, with a diameter of only a few nanometers, is surprisingly important for the magnetization dynamics when a current flows through the double-vortex pillars.
Credit
HZDR/FZJ
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