Angle-resolved photoemission studies of quantum materials
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 …
concepts such as symmetry and topology that have transformed our understanding of matter …
Iron pnictides and chalcogenides: a new paradigm for superconductivity
Superconductivity is a remarkably widespread phenomenon that is observed in most metals
cooled to very low temperatures. The ubiquity of such conventional superconductors, and …
cooled to very low temperatures. The ubiquity of such conventional superconductors, and …
Graphene bilayers with a twist
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 …
to a strongly correlated two-dimensional electron system with properties that are …
Emergent charge order in pressurized kagome superconductor CsV3Sb5
The discovery of several electronic orders in kagome superconductors AV3Sb5 (A means K,
Rb, Cs) provides a promising platform for exploring unprecedented emergent physics …
Rb, Cs) provides a promising platform for exploring unprecedented emergent physics …
Charge order and broken rotational symmetry in magic-angle twisted bilayer graphene
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 …
The interlayer twist gives rise to a moiré superlattice that affects the electronic motion and …
Nematicity and competing orders in superconducting magic-angle graphene
Strongly interacting electrons in solid-state systems often display multiple broken
symmetries in the ground state. The interplay between different order parameters can give …
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
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 …
degrees of freedom, many intertwined orders exist with close energies. One of the commonly …
Van Hove annihilation and nematic instability on a kagome lattice
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 …
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
Owing to its unique geometry, the kagome lattice hosts various many-body quantum states
including frustrated magnetism, superconductivity, and charge-density waves (CDWs). In …
including frustrated magnetism, superconductivity, and charge-density waves (CDWs). In …
Competing magnetic phases and fluctuation-driven scalar spin chirality in the kagome metal YMn6Sn6
Identification, understanding, and manipulation of novel magnetic textures are essential for
the discovery of new quantum materials for future spin-based electronic devices. In …
the discovery of new quantum materials for future spin-based electronic devices. In …