Photoemission perspective on pseudogap, superconducting fluctuations, and charge order in cuprates: a review of recent progress

TL;DR

This review discusses recent advances in understanding the pseudogap, superconducting fluctuations, and charge order in cuprates using photoemission spectroscopy, highlighting how ARPES has deepened insights into these complex phenomena.

Contribution

It synthesizes recent ARPES findings to clarify the relationship between pseudogap, superconductivity, and charge order in cuprates, offering a comprehensive overview of progress in the field.

Findings

ARPES reveals momentum-dependent pseudogap characteristics.

Fermi arc phenomena are linked to pseudogap behavior.

Charge order correlates with pseudogap features in cuprates.

Abstract

In the course of seeking the microscopic mechanism of superconductivity in cuprate high temperature superconductors, the pseudogap phase\textemdash the very abnormal 'normal' state on the hole-doped side\textemdash has proven to be as big of a quandary as superconductivity itself. Angle-resolved photoemission spectroscopy (ARPES) is a powerful tool for assessing the momentum-dependent phenomenology of the pseudogap, and recent technological developments have permitted a more detailed understanding. This report reviews recent progress in understanding the relationship between superconductivity and the pseudogap, the Fermi arc phenomena, and the relationship between charge order and pseudogap from the perspective of ARPES measurements.