Columnar fluctuations as a source of non-Fermi-liquid behavior in weak metallic magnets.
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.
Kirkpatrick
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Institute for Physical Science and Technology and Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
Belitz
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