Dipolar interactions induced order in assemblies of magnetic particles

TL;DR

This paper explores how dipolar interactions induce order in assemblies of magnetic particles, revealing that such ordering occurs across different dimensions and can lead to various structural phases, including regular and fractal formations.

Contribution

It demonstrates the emergence of ordered structures driven by dipolar interactions in magnetic particle assemblies, highlighting the role of thermal motion, screening, and excluded volume effects.

Findings

Ordered structures form regardless of system dimensionality

Dipolar interactions can lead to regular or fractal phases

Order emerges when dipolar interactions significantly influence particle behavior

Abstract

We discuss the appareance of ordered structures in assemblies of magnetic particles. The phenomenon occurs when dipolar interactions and the thermal motion of the particles compete, and is mediated by screening and excluded volume effects. It is observed irrespective of the dimensionality of the system and the resulting structures, which may be regular or fractal, indicate that new ordered phases may emerge in these system when dipolar interactions play a significant role.