Effects of Sr doping on the magnetic properties of Sr$_x$Ba$_{1-x}$CoO$_3$

TL;DR

This study investigates how Sr doping influences the magnetic properties of Sr$_x$Ba$_{1-x}$CoO$_3$, revealing larger magnetic clusters, increased blocking temperatures, and persistent superparamagnetism at room temperature, with potential for property tuning.

Contribution

It provides a combined theoretical and literature-based analysis showing how Sr doping alters magnetic cluster size and properties in BaCoO$_3$.

Findings

Formation of larger magnetic clusters with Sr doping

Increase in blocking temperature due to doping

Superparamagnetism persists at room temperature

Abstract

Magnetic properties of the Sr-doped BaCoO$_3$ are explained on the basis of ab initio calculations and the analysis of experimental literature. Formation of magnetic clusters bigger than in the parent compound and increase in the blocking temperature are observed. Superparamagnetism remains at room temperature. The possibility of tuning the size and properties of the magnetic clusters with doping is explored.