Charge and Spin Ordering in the Mixed Valence Compound LuFe2O4

TL;DR

This paper uses Landau theory and symmetry analysis to explain charge and spin ordering phenomena in LuFe2O4, highlighting the role of phonon-mediated interactions in the evolution of charge correlations.

Contribution

It provides a unified theoretical framework for charge and spin ordering in LuFe2O4, emphasizing phonon interactions, which was not previously detailed.

Findings

Charge and spin orderings are explained by symmetry considerations.

Phonon-mediated interactions influence charge ordering correlations.

A unified Landau theory approach is developed for LuFe2O4.

Abstract

Landau theory and symmetry considerations are invoked to give a unified treatment of charge and spin ordering in the mixed valence compound LuFe2O4. In particular, the unusual evolution of charge ordering correlations can be explained by invoking phonon mediated interactions.