Disorder effects in electronic structure of substituted transition metal compounds

TL;DR

This paper studies how disorder influences the electronic structure of LaNi(1-x)M(x)O3 compounds with M = Mn and Fe, revealing spectral evolution across the metal-insulator transition considering strong interactions.

Contribution

It provides new insights into the spectral function evolution in disordered, strongly interacting transition metal oxides near the metal-insulator transition.

Findings

Spectral function evolves with increasing disorder.

Disorder effects are significant across the metal-insulator transition.

Results are discussed in context of existing theories.

Abstract

Investigating LaNi(1-x)M(x)O3 (M = Mn and Fe), we identify a characteristic evolution of the spectral function with increasing disorder in presence of strong interaction effects across the metal-insulator transition. We discuss these results vis-a-vis existing theories of electronic structure in simultaneous presence of disorder and interaction.