A stretched exponential-based approach for the magnetic properties of spin glasses

TL;DR

This paper introduces a stretched exponential-based model to describe the complex magnetic behaviors of spin glasses, capturing experimental observations like magnetization decay and relaxation phenomena.

Contribution

The paper proposes a novel stretched exponential decay model that effectively describes various magnetic properties of spin glasses, offering potential applicability to other glassy systems.

Findings

Model accurately fits experimental magnetization decay data

Captures aging, rejuvenation, and memory effects in spin glasses

Potential to extend to other glassy materials

Abstract

The spin glasses show intriguing characteristic features that are not well understood yet, as for instance its aging, rejuvenation and memory effects. Here a model based on a stretched exponential decay of its magnetization is proposed, which can describe the main magnetic features of spin glasses observed in experiments as the time-decay of thermoremament magnetization, the relaxation of zero field cooled magnetization, the ac and dc magnetization as a function of temperature and others. In principle, the here proposed model could be adapted to describe other glassy systems.