Analogy between Three-Dimensional Helimagnetic Metals and Two-Dimensional Nonmagnetic Metals: Transport in the Weak-Disorder Regime

Abstract

We present a quasi-particle model that allows for a simple description of the electronic properties of metallic helimagnets. For weak quenched disorder, we find a leading linear temperature dependence of the electrical conductivity for 3-d materials. This is reminiscent of the behavior of nonmagnetic 2-d systems, and reflects a general tendency of certain properties of bulk helimagnets to appear effectively 2-d. The sign of the effect is opposite to that in nonmagnetic 2-d materials. These surprising predictions should be observable in weak helimagnets.

4pp, 2 figs, final version to be published

References in corpus (4)

• Interaction corrections at intermediate temperatures: I. Longitudinal conductivity and kinetic equation
• Theory of helimagnons in itinerant quantum systems II: Nonanalytic corrections to Fermi-liquid behavior
• Effects of Electron-Electron and Electron-Phonon Interactions in Weakly Disordered Conductors and Heterostuctures
• Breakdown of Hydrodynamic Transport Theory in the Ordered Phase of Helimagnets