Materials and mechanisms of hole superconductivity

TL;DR

This paper reviews the theory of hole superconductivity, proposing a unified mechanism for various superconducting materials including elements, alloys, cuprates, MgB2, iron pnictides, doped semiconductors, and high-pressure elements.

Contribution

It introduces a comprehensive theory of hole superconductivity applicable across diverse material families, unifying their understanding.

Findings

Superconductivity in various materials can be explained by the hole superconductivity mechanism.

The theory accounts for both high and low temperature superconductors.

Material behaviors under different conditions support the proposed unified mechanism.

Abstract

The theory of hole superconductivity proposes that there is a single mechanism of superconductivity that applies to all superconducting materials. This paper discusses several material families where superconductivity occurs and how they can be understood within this theory. Materials discussed include the elements, transition metal alloys, high $T_c$ cuprates both hole-doped and electron-doped, $MgB_2$, iron pnictides, doped semiconductors, and elements under high pressure.