Volume 13 Issue 12, December 2018
Fast meets small in compensated ferrimagnets
Topologic spin textures such as skyrmions or domain walls are robust against perturbation and can be manipulated all-electrically. To make them useful for information storage and processing, there is a need for fast, room-temperature manipulation and small footprints. Caretta et al. drove domain walls with a speed of 1.3’km’s–1 and created skyrmions down to 10-nm diameter at room temperature in a compensated ferrimagnet. The cover art depicts skyrmions (white swirls with a red or blue centre) within three domains of the ferrimagnet (red and blue, respectively), which are separated by domain walls (white). The orientation of each arrow indicates a spin and its colour the local net magnetization.
See Beach et al.
Image: Lucas Caretta and Mantao Huang. Cover Design: Sam Whitham
Editorial
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