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

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.

4pp, 4 figures

References in corpus (6)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Skyrmions and Anomalous Hall Effect in a Dzyloshinskii-Moriya Spiral Magnet
• Theory of the helical spin crystal: a candidate for the partially ordered state of MnSi
• Crystalline phases in chiral ferromagnets: Destabilization of helical order
• Theory of Helimagnons in Itinerant Quantum Systems III: Quasiparticle Description
• Theory of Helimagnons in Itinerant Quantum Systems IV: Transport in the Weak-Disorder Regime

Cited by in corpus (17)

• Metallic Quantum Ferromagnets
• Formation of a topological non-Fermi liquid in MnSi
• Spin waves in a skyrmion crystal
• Magnetic Blue Phase in the Chiral Itinerant Magnet MnSi
• Band structure of helimagnons in MnSi resolved by inelastic neutron scattering
• Colloquium: Quantum Properties and Functionalities of Magnetic Skyrmions
• Quantum order-by-disorder near criticality and the secret of partial order in MnSi
• Skyrmions and spirals in MnSi under hydrostatic pressure
• Ordered Phases of Itinerant Dzyaloshinsky-Moriya Magnets and Their Electronic Properties
• Helical glasses near ferromagnetic quantum criticality
• Anomalous Fermi liquid phase in metallic Skyrmion crystals
• Theory of a Fermi-Liquid-to-Non-Fermi-Liquid Quantum Phase Transition in Dimensions d>1
• Evolution of Helimagnetic Correlations when approaching the Quantum Critical Point of Mn${}_{1-x}$Fe${}_x$Si
• Exact solution of the Boltzmann equation for low-temperature transport coefficients in metals I: Scattering by phonons, antiferromagnons, and helimagnons
• Generic non-Fermi-liquid behavior of the resistivity in magnets with ferromagnetic, helical, or skyrmionic order
• Anomalous Transport Behavior in Quantum Magnets
• Role of domain wall fluctuations in non-Fermi liquid behavior of metamagnets