Three Dimensional Magnetic Correlations in Multiferroic LuFe2O4

TL;DR

This study uses neutron diffraction to investigate the 3D magnetic correlations and phase transitions in multiferroic LuFe2O4, revealing ferrimagnetic order and complex magnetic behavior at different temperatures.

Contribution

It provides detailed insights into the temperature-dependent magnetic structures and correlations in LuFe2O4, highlighting the persistence and broadening of magnetic features.

Findings

Magnetic phase transitions at 240 K and 175 K

Ferrimagnetic magnetic structure below 240 K

Persistence of 3D magnetic correlations with peak broadening below 175 K

Abstract

We present single-crystal neutron diffraction measurements on multiferroic LuFe2O4 showing phase transitions at 240 and 175 K. Magnetic reflections are observed below each transition indicating that the magnetic interactions in LuFe2O4 are 3-dimensional (3D) in character. The magnetic structure is refined as a ferrimagnetic spin configuration below the 240 K transition. While 3D magnetic correlations persists below 175 K, a significant broadening of the magnetic peaks is observed along with the build up of a diffuse component to the magnetic scattering.