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 …

Graphene bilayers with a twist

EY Andrei, AH MacDonald - Nature materials, 2020 - nature.com
Near a magic twist angle, bilayer graphene transforms from a weakly correlated Fermi liquid
to a strongly correlated two-dimensional electron system with properties that are …

Emergent charge order in pressurized kagome superconductor CsV3Sb5

L Zheng, Z Wu, Y Yang, L Nie, M Shan, K Sun, D Song… - Nature, 2022 - nature.com
The discovery of several electronic orders in kagome superconductors AV3Sb5 (A means K,
Rb, Cs) provides a promising platform for exploring unprecedented emergent physics …

Charge order and broken rotational symmetry in magic-angle twisted bilayer graphene

Y Jiang, X Lai, K Watanabe, T Taniguchi, K Haule… - Nature, 2019 - nature.com
Bilayer graphene can be modified by rotating (twisting) one layer with respect to the other.
The interlayer twist gives rise to a moiré superlattice that affects the electronic motion and …

Nematicity and competing orders in superconducting magic-angle graphene

Y Cao, D Rodan-Legrain, JM Park, NFQ Yuan… - science, 2021 - science.org
Strongly interacting electrons in solid-state systems often display multiple broken
symmetries in the ground state. The interplay between different order parameters can give …

Twofold symmetry of c-axis resistivity in topological kagome superconductor CsV3Sb5 with in-plane rotating magnetic field

Y **ang, Q Li, Y Li, W **e, H Yang, Z Wang… - Nature …, 2021 - nature.com
In transition metal compounds, due to the interplay of charge, spin, lattice and orbital
degrees of freedom, many intertwined orders exist with close energies. One of the commonly …

Van Hove annihilation and nematic instability on a kagome lattice

YX Jiang, S Shao, W **a, MM Denner, J Ingham… - Nature Materials, 2024 - nature.com
A nematic phase breaks the point-group symmetry of the crystal lattice and is known to
emerge in correlated materials. Here we report the observation of an intra-unit-cell nematic …

Competing charge-density wave instabilities in the kagome metal ScV6Sn6

S Cao, C Xu, H Fukui, T Manjo, Y Dong, M Shi… - Nature …, 2023 - nature.com
Owing to its unique geometry, the kagome lattice hosts various many-body quantum states
including frustrated magnetism, superconductivity, and charge-density waves (CDWs). In …

Competing magnetic phases and fluctuation-driven scalar spin chirality in the kagome metal YMn6Sn6

NJ Ghimire, RL Dally, L Poudel, DC Jones… - Science …, 2020 - science.org
Identification, understanding, and manipulation of novel magnetic textures are essential for
the discovery of new quantum materials for future spin-based electronic devices. In …