Hall-effect evolution across a heavy-fermion quantum critical point

@article{Paschen2004HalleffectEA,
  title={Hall-effect evolution across a heavy-fermion quantum critical point},
  author={Silke Paschen and T. L{\"u}hmann and Steffen Wirth and Philipp Gegenwart and Octavio Trovarelli and Christoph Geibel and Frank Steglich and Piers Coleman and Qimiao Si},
  journal={Nature},
  year={2004},
  volume={432},
  pages={881-885}
}
A quantum critical point (QCP) develops in a material at absolute zero when a new form of order smoothly emerges in its ground state. QCPs are of great current interest because of their singular ability to influence the finite temperature properties of materials. Recently, heavy-fermion metals have played a key role in the study of antiferromagnetic QCPs. To accommodate the heavy electrons, the Fermi surface of the heavy-fermion paramagnet is larger than that of an antiferromagnet. An important… 
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