# Structural and Magnetic Characterization of Spin Canted Mixed Ferrite-Cobaltites: LnFe0.5Co0.5O3 (Ln = Eu and Dy)

## TL;DR

This study investigates the structural and magnetic properties of LnFe0.5Co0.5O3 ferrite-cobaltites with Eu and Dy, revealing canted antiferromagnetic order and weak ferromagnetism near room temperature, with complex magnetic interactions and phenomena.

## Contribution

It provides new insights into the magnetic behavior and interactions in mixed ferrite-cobaltites with Eu and Dy, highlighting spin canting and temperature-dependent magnetic phenomena.

## Key findings

- Samples exhibit canted antiferromagnetic order near room temperature.
- Weak ferromagnetism arises from Dzyaloshinskii-Moriya interaction.
- Hysteresis observed at low temperatures due to magnetic interactions.

## Abstract

The mixed ferrite-cobaltites LnFe0.5Co0.5O3, with Ln = Eu & Dy have been prepared by a sol-gel method and the samples have been characterized using X-ray diffraction and electron microscopy. The magnetic investigations reveal that both samples ordered in canted antiferromagnetic structures near room temperature. The Dzyaloshinskii-Moriya or antisymmetric exchange interaction induces weak ferromagnetism due to canting of the antiferromagnetically ordered spins. In the case of Ln-Fe-Co orthoferrites, two magnetic sublattices (Ln3+-4f and Fe3+/Co3+-3d) generally align in opposite directions and interesting temperature dependent phenomena: e.g. uncompensated antiferromagnetic sublattices and spin-reorientations, are observed in the system. The existence of hysteresis at low temperature region has been explained in terms of the strength of magnetic interactions between Fe3+ and Co3+ ions with different A-site rare earth cations.

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Source: https://tomesphere.com/paper/1812.09031