Fe-based superconductors: seven years later

TL;DR

This review summarizes the progress made over seven years in understanding Fe-based superconductors, highlighting key discoveries, open questions, and future physics insights in this class of high-temperature superconductors.

Contribution

It provides a comprehensive overview of the developments, challenges, and future directions in the study of iron-based superconductors since their discovery.

Findings

Identification of key properties of Fe-based superconductors

Open questions regarding pairing mechanisms and material optimization

Predictions of new physics from ongoing research

Abstract

Iron-based superconductors were discovered seven years ago, in 2008. This short review summarizes what we learned about these materials over the last seven years, what are open questions, and what new physics we expect to extract from studies of this new class of high-temperature superconductors.