Correlations between pressure and bandwidth effects in metal-insulator transitions in manganites

TL;DR

This study explores how pressure influences the metal-insulator transition in manganites, revealing a universal critical pressure point where transition temperature peaks, and discusses the relation between pressure effects and bandwidth.

Contribution

It provides new insights into the universal pressure point affecting metal-insulator transitions and clarifies the relationship between pressure, bandwidth, and transition temperature in manganites.

Findings

Identification of a critical pressure where T_MI peaks

Universal behavior across different manganite samples

Discussion of pressure's relation to bandwidth effects

Abstract

The effect of pressure on the metal-insulator transition in manganites with a broad range of bandwidths is investigated. A critical pressure is found at which the metal-insulator transition temperature, T$_{MI}$, reaches a maximum value in every sample studied. The origin of this universal pressure and the relation between the pressure effect and the bandwidth on the metal-insulator transition are discussed.