Double-Vortex States (IMAGE) Helmholtz-Zentrum Dresden-Rossendorf 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 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.