Non-Fermi-liquid behavior of electron-spin fluctuations in an elemental paramagnet
Physical Review Letters, 2002•APS
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-M n
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-M n 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 …
elemental paramagnetic metal. Both the dynamical susceptibility and the resistivity of β-M n
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-M n 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 …
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 are shown to display non-Fermi-liquid scaling over a relatively large temperature range at ambient pressure. The temperature dependence of the resistivity in 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 is not a consequence of summing over different local atomic environments, but a much more fundamental phenomenon.
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