Correlation between magnetism and the Verwey transition in magnetite

TL;DR

This study investigates the relationship between magnetism and the Verwey transition in magnetite by measuring electrical resistivity and magnetic moments across a wide temperature range, revealing correlations between magnetic and electrical properties.

Contribution

The paper provides new experimental evidence linking magnetic properties with the Verwey transition in magnetite, highlighting the interplay between electrical transport and magnetism.

Findings

Correlation between Curie temperature and Verwey temperature

Electrical resistivity and magnetic moment are interconnected

Verwey transition mechanism is influenced by magnetic properties

Abstract

Seeking to unravel the enigmatic Verwey transition and its interplay with magnetism, we have conducted comprehensive measurements on the temperature-dependent electrical resistivity and magnetic moment of stoichiometric and doped-magnetite single crystals at temperatures reaching 1000 K. These investigations have allowed us to identify the Curie temperature, $T_C$, and other characteristic temperatures of the electrical resistivity. Remarkably, we have identified correlations between these temperatures and the Verwey temperature, $T_V$, indicating that the electrical transport properties and the mechanism of the Verwey transition are closely related to the magnetic properties.