Relaxation of the field-cooled magnetization of an Ising spin glass

TL;DR

This study investigates how the field-cooled magnetization of a 3D Ising spin glass depends on time and temperature, revealing memory effects that enhance understanding of its real-space modeling.

Contribution

It demonstrates the temperature and cooling rate dependence of magnetization and links it to memory phenomena observed in ac-susceptibility, advancing spin glass modeling.

Findings

Memory phenomena observed in magnetization and ac-susceptibility

Dependence on temperature and cooling rate

Insights into real-space modeling of spin glasses

Abstract

The time and temperature dependence of the field-cooled magnetization of a three dimensional Ising spin glass, Fe_{0.5}Mn_{0.5}TiO_{3}, has been investigated. The temperature and cooling rate dependence is found to exhibit memory phenomena that can be related to the memory behavior of the low frequency ac-susceptibility. The results add some further understanding on how to model the three dimensional Ising spin glass in real space.