Boosting the Curie temperature with correlations in diluted magnetic semiconductors

TL;DR

This paper develops a quantitative theory showing how correlated doping can enhance ferromagnetism in diluted magnetic semiconductors, potentially enabling room temperature ferromagnetism in specific materials.

Contribution

It introduces a new theoretical framework for understanding the impact of doping correlations on ferromagnetism in diluted magnetic semiconductors.

Findings

Room temperature ferromagnetism possible in correlated Mn_xGa_{1-x}As

Lower critical temperatures predicted for Mn_xGa_{1-x}N

Correlated doping significantly influences magnetic properties

Abstract

We present a quantitative theory for the effects of correlated doping on the ferromagnetism of diluted magnetic semiconductors. It predicts that room temperature ferromagnetism should be possible in homogeneous, but correlated, samples of Mn$_x$Ga$_{1-x}$As. The theory predicts lower critical temperatures for Mn$_x$Ga$_{1-x}$N.