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Nature 448, 546-547 (2 August 2007) | doi:10.1038/448546b; Published online 1 August 2007

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Magnetism: Managed mess

Zachary Fisk1

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The presence of non-magnetic atoms can create a random internal field in magnetic crystals. Tuning that field from outside allows the intrinsic magnetic properties of the material to be precisely controlled.

The eccentric inventor and industrialist Diet Smith — financier of Dick Tracy's crime-fighting gadgetry (Fig. 1) — noted long ago that "he who controls magnetism controls the Universe".

  1. Zachary Fisk is in the Department of Physics and Astronomy, University of California Irvine, 2186 Frederick Reines Hall, Irvine, California 92697, USA.
    Email: zfisk@uci.edu

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