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Beyond the speed limit

Comb-shaped nanostrips pave the way for a fourfold velocity increase in the propagation of magnetic domain walls.

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Figure 1: Snapshots of the numerically simulated motion of a magnetic domain wall in a 150-nm wide, 5-nm thick NiFe strip under an applied magnetic field.


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Beach, G. Beyond the speed limit. Nature Mater 9, 959–960 (2010).

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