Seven energy/temperature scales in hole-doped cuprates

TL;DR

This paper explores the complex phase diagram of hole-doped cuprates, revealing at least seven distinct energy/temperature scales due to charge inhomogeneity and nanoscale clustering in CuO_2 planes, exemplified by Bi2212.

Contribution

It introduces a detailed phase diagram with seven energy/temperature scales linked to nanoscale charge inhomogeneity in cuprates.

Findings

Identification of seven distinct energy/temperature scales.

Charge inhomogeneity causes multiple clustering effects.

Phase diagram variability depending on doping levels.

Abstract

The purpose of this paper is to discuss a phase diagram of hole-doped cuprates. Hole-doped cuprates have a very rich phase diagram as a function of doping. This is due to a charge inhomogeneity in CuO_2 planes: the charge distribution in CuO_2 planes is inhomogeneous both on a nanoscale and macroscale. Depending on doping level, the CuO_2 planes comprise at least four different types of clusters having a size of a few nanometers. Each type of clusters has its own features. As a consequence, the common phase diagram consists of, at least, seven different energy/temperature scales. As an example, we consider a phase diagram of Bi2212.