Ising antiferromagnet with mobile, pinned and quenched defects

TL;DR

This paper introduces and analyzes a 2D Ising antiferromagnet model with mobile, pinned, and quenched defects, exploring how defect arrangements influence magnetic order and response to external fields using Monte Carlo simulations.

Contribution

It presents a novel model incorporating different defect types in a 2D Ising antiferromagnet and analyzes their effects on magnetic properties and external field response.

Findings

Defect arrangements significantly affect magnetic ordering.

External fields influence defect mobility and magnetic states.

Monte Carlo simulations reveal complex interplay between defects and magnetism.

Abstract

Motivated by recent experiments on (Sr,Ca,La)_14 Cu_24 O_41, a two-dimensional Ising antiferromagnet with mobile, locally pinned and quenched defects is introduced and analysed using mainly Monte Carlo techniques. The interplay between the arrangement of the defects and the magnetic ordering as well as the effect of an external field are studied.