Angle-resolved photoemission studies of quantum materials

JA Sobota, Y He, ZX Shen - Reviews of Modern Physics, 2021 - APS
The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

Iron pnictides and chalcogenides: a new paradigm for superconductivity

RM Fernandes, AI Coldea, H Ding, IR Fisher… - Nature, 2022 - nature.com
Superconductivity is a remarkably widespread phenomenon that is observed in most metals
cooled to very low temperatures. The ubiquity of such conventional superconductors, and …

Magnetism and charge density wave order in kagome FeGe

X Teng, JS Oh, H Tan, L Chen, J Huang, B Gao, JX Yin… - Nature physics, 2023 - nature.com
Electron correlations often lead to emergent orders in quantum materials, and one example
is the kagome lattice materials where topological states exist in the presence of strong …

Quantum phases driven by strong correlations

S Paschen, Q Si - Nature Reviews Physics, 2021 - nature.com
It has long been thought that strongly correlated systems are adiabatically connected to their
non-interacting counterpart. Recent developments have highlighted the fallacy of this …

On the remarkable superconductivity of FeSe and its close cousins

A Kreisel, PJ Hirschfeld, BM Andersen - Symmetry, 2020 - mdpi.com
Emergent electronic phenomena in iron-based superconductors have been at the forefront
of condensed matter physics for more than a decade. Much has been learned about the …

Flat bands, strange metals and the Kondo effect

JG Checkelsky, BA Bernevig, P Coleman, Q Si… - Nature Reviews …, 2024 - nature.com
Flat-band materials such as the kagome metals or moiré superlattices are of intense current
interest. Flat bands can result from the electron motion on numerous (special) lattices and …

Spintronics meets orbitronics: Emergence of orbital angular momentum in solids

D Jo, D Go, GM Choi, HW Lee - npj Spintronics, 2024 - nature.com
One of the ultimate goals of spintronics is to realize an efficient electrical manipulation of
spin for high-speed and low-power nanodevices. A core ingredient for achieving this goal is …

Nematic energy scale and the missing electron pocket in FeSe

M Yi, H Pfau, Y Zhang, Y He, H Wu, T Chen, ZR Ye… - Physical Review X, 2019 - APS
Superconductivity emerges in proximity to a nematic phase in most iron-based
superconductors. It is therefore important to understand the impact of nematicity on the …

Correlation-driven electronic reconstruction in FeTe1−xSex

J Huang, R Yu, Z Xu, JX Zhu, JS Oh, Q Jiang… - Communications …, 2022 - nature.com
Electronic correlation is of fundamental importance to high temperature superconductivity.
While the low energy electronic states in cuprates are dominantly affected by correlation …

Imaging orbital-selective quasiparticles in the Hund's metal state of FeSe

A Kostin, PO Sprau, A Kreisel, YX Chong, AE Böhmer… - Nature materials, 2018 - nature.com
Strong electronic correlations, emerging from the parent Mott insulator phase, are key to
copper-based high-temperature superconductivity. By contrast, the parent phase of an iron …