Parameters of the Dzyaloshinsky-Moriya type weak ferromagnetism for some perovskite compounds

TL;DR

This paper investigates the magnetic parameters related to weak ferromagnetism in distorted perovskite compounds, focusing on the Dzyaloshinsky-Moriya interaction across various rare-earth and transition metal oxides.

Contribution

It provides new insights into the magnetic properties and Dzyaloshinsky-Moriya parameters of specific perovskite compounds with mixed and pure compositions.

Findings

Determined Dzyaloshinsky-Moriya parameters for several compounds.

Identified magnetic behavior variations in mixed and pure ferrites.

Explored the influence of structural distortions on weak ferromagnetism.

Abstract

Compounds with distorted perovskite structure of the 4-f and 3-d transition metals with the common formula LnTO3 (where Ln is rare-earth element, T is an element from the Fe group) are the most multifold binary oxides of these two groups elements. Wide range of stability for this structure allows the realization of combinations of the Lanthanides with all the transition metals except the Nickel. Quite interesting physical phenomena take place in these oxides like charge and orbital ordering; relatively independent magnetic lattices of the both metals; particular magnetic structures; high optical indicators; giant magneto-resistance; peculiar dielectric and ferroelectric properties etc. We have investigated the magnetic properties of pure ferrites and chromium-based materials as well as of some mixed type oxides like HoxTb1-xO3, HoMnxFe1-xO3, HoMnxCr1-xO3 and DyFexCr1-xO3.