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Columnar Fluctuations as a Source of Non-Fermi-Liquid Behavior in Weak Metallic Magnets

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Published Article
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DOI: 10.1103/PhysRevLett.104.256404
arXiv ID: 1003.4809
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arXiv
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Abstract

It is shown that columnar fluctuations, in conjunction with weak quenched disorder, lead to a T^{3/2} temperature dependence of the electrical resistivity. This is proposed as an explanation of the observed non-Fermi-liquid behavior in the helimagnet MnSi, with one possible realization of the columnar fluctuations provided by skyrmion lines that have independently been proposed to be present in this material.

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