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Magnetic nanostructures

Overcoming thermal fluctuations

The storage density of computer hard drives has increased to the point that magnetic recording media is cheaper than paper. Yet there are limits to this technology. As they decrease in size, magnetic 'bits' become thermally unstable, providing a challenge to further miniaturization.

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Figure 1: Beating the superparamagnetic limit for small magnetic nanoparticles.


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Correspondence to Ivan K. Schuller.

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Eisenmenger, J., Schuller, I. Overcoming thermal fluctuations. Nature Mater 2, 437–438 (2003).

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