Non-equilibrium dynamics in an interacting nanoparticle system

TL;DR

This paper investigates the non-equilibrium behavior of an interacting Fe-C nanoparticle system exhibiting spin glass-like properties, revealing both similarities and differences with classical spin glasses through susceptibility and relaxation experiments.

Contribution

It provides new insights into the non-equilibrium dynamics of nanoparticle systems with spin glass characteristics, highlighting qualitative differences from traditional spin glasses.

Findings

Exhibits spin glass-like features in susceptibility and relaxation

Identifies qualitative differences from classical spin glasses

Discusses the nature of these differences

Abstract

Non-equilibrium dynamics in an interacting Fe-C nanoparticle sample, exhibiting a low temperature spin glass like phase, has been studied by low frequency ac-susceptibility and magnetic relaxation experiments. The non-equilibrium behavior shows characteristic spin glass features, but some qualitative differences exist. The nature of these differences is discussed.