A comprehensive review on topological superconducting materials and interfaces

TL;DR

This review comprehensively discusses recent progress in topological superconducting materials and interfaces, covering experimental techniques, material candidates, and the relationship with Majorana fermions, highlighting key developments and future directions.

Contribution

It systematically summarizes advances in topological superconductivity, including experimental methods, material candidates, and the role of heterostructures, providing a valuable overview of the field.

Findings

Identification of potential topological superconductor materials

Summary of experimental techniques for characterization

Insights into Majorana fermions in topological systems

Abstract

Superconductivity in topological materials has drawn a significant interest of the scientific community as these materials provide a hint of the existence of Majorana fermions conceived from the quantized thermal conductivity, a zero-biased conduction peak and the anomalous Josephson effect. In this review, we make a systematic study of recent advances in the field of topological superconductivity. The article comprises of both bulk systems as well as heterostructures. A brief description of Majorana fermions and their relationship with topological superconductors and heterostructures is also carried out. Also, this review consists of details of key experimental techniques to characterize candidates of topological superconductivity. Moreover, we summarize the potential material candidate that may demonstrate topological superconductivity. We also consider some intrinsic odd-parity superconductors, non-centrosymmetric, centrosymmetric superconductors, doped topological insulators, doped topological crystalline insulators and some other materials that are expected to show superconductivity along with topological non-trivial states in bulk from. The effect of pressure, emergence of superconductivity in topological materials and Muon Spin Rotation studies are also summarized in this article.