Multirelaxational Dynamic Response In Incommensurate Phases

TL;DR

This paper presents a model describing the complex multirelaxational dielectric response in incommensurate phases, highlighting interactions between uniform and higher order modes in order-disorder systems.

Contribution

It introduces a new model that captures the multirelaxational behavior in incommensurate phases, even in the single-plane-wave limit.

Findings

Multirelaxation behavior is inherent in incommensurate phases.

The model explains complex dielectric responses.

Interactions between modes alter relaxation dynamics.

Abstract

Interactions of the uniform mode with higher order modes due to incommensurately modulated equilibrium state change the usual relaxation behaviour to a more complex one. A multirelaxation character should be present even in the single-plane-wave limit. Our model enables one to describe dynamic dielectric response of the incommensurable modulated phases in order-disorder systems.