| Non-fermi-liquid behavior of electron-spin fluctuations in an elemental paramagnet (2002) | |||||||||||
Abstract | |||||||||||
| We report for the first time, the observation of non-Fermi-liquid scaling behavior in an elemental paramagnetic metal. Both the dynamical susceptibility and the resistivity of β-Mn are shown to display non-Fermi-liquid scaling over a relatively large temperature range at ambient pressure. The temperature dependence of the resistivity in β-Mn is consistent with the existence of an antiferromagnetic zero-temperature phase transition or “quantum critical point.” Since there is no site disorder in this pure element, we show that non-Fermi-liquid behavior observed in β-Mn is not a consequence of summing over different local atomic environments, but a much more fundamental phenomenon. | |||||||||||
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