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Nature 424, 504-505 (31 July 2003) | doi:10.1038/424504a

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Condensed-matter physics: Singular behaviour

Zachary Fisk1

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Quantum fluctuations at absolute zero may push a system into a different phase or state. The 'quantum critical point' at which this happens in certain materials has now been probed in greater detail.

More than a century of probing the physics of magnetism has only served to heighten its interest for physicists. Over the past decade, a new focus has evolved — the behaviour of magnetic materials at a 'quantum critical point'.

  1. Department of Physics, Florida State University, Tallahassee, Florida 32306, and the Los Alamos National Laboratory, K774, Los Alamos, New Mexico 87545, USA.
    Email: fisk@magnet.fsu.edu