Noncollinear magnetism in distorted perovskite compounds

TL;DR

This paper investigates how crystal distortions influence the magnetic structures of orthorhombically distorted perovskites, revealing the emergence of non-collinear spin arrangements through band structure calculations.

Contribution

It demonstrates the impact of crystal distortions on magnetic structures and highlights the variation in non-collinearity among different perovskite compounds.

Findings

Non-collinearity is small in La$M$O$_3$ series with $M$=Cr-Fe.

Non-collinearity is large in SrRuO$_3$.

Crystal distortions significantly affect magnetic arrangements.

Abstract

Using results of the band structure calculations in the local-spin-density approximation we demonstrate how the crystal distortions affect the magnetic structure of orthorhombically distorted perovskites leading to a non-collinear spin arrangement. Our results suggest that the non-collinearity of the spin magnetic moments, being generally small in La$M$O$_3$ series with $M$=Cr-Fe, is large in SrRuO$_3$.