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Applied physics

Champing at the bit

When two 'bits' of magnetic information race around a nanoscale wire, two factors determine whether or not they survive the course: the condition of the track, and how fast they respond to the starting signal.

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Figure 1: At the nanoscale races.


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The author has declared the filing of a number of patents under his name on domain walls in magnetic nanowires. Under the terms of a funding arrangement between the author, his employers and a private investor, a share of the profits from any commercial uptake of systems based on these intellectual property rights will be returned to the author and his employer.

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Cowburn, R. Champing at the bit. Nature 448, 544–545 (2007).

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