A Phenomenological Description of the Non-Fermi-Liquid Phase of MnSi

TL;DR

This paper proposes a phenomenological model based on a multispiral magnetic state to explain the non-Fermi-liquid behavior observed in MnSi under pressure, aligning with recent neutron scattering experiments.

Contribution

It introduces a novel scenario linking multispiral magnetic states to non-Fermi-liquid behavior in MnSi, providing a new interpretative framework.

Findings

Multispiral state explains neutron scattering data

Scenario accounts for non-Fermi-liquid behavior

Aligns with recent critical experiments

Abstract

In order to understand the non-Fermi-liquid behavior of MnSi under pressure we propose a scenario on the basis of the multispiral state of the magnetic moment. This state can describe the recent critical experiment of the Bragg sphere in the neutron scattering which is the key ingredient of the non-Fermi-liquid behavior.