Quantum mechanics

Quark

Magnetic field

Phase (matter)

Metallurgy

Materials science

Magnetic flux

Acoustics

Lattice (music)

Physics

T-symmetry

Chiral symmetry

Mathematics

Superconductivity

Point reflection

Condensed matter physics

Geometry

Combinatorics

Charge (physics)

Symmetry (geometry)

Electron

Topology (electrical circuits)

Flux (metallurgy)

Charge density wave

Science Bulletin

We argue that the topological charge density wave phase in the quasi-2D Kagome superconductor AV3Sb5 is a chiral flux phase. Considering the symmetry of the Kagome lattice, we show that the chiral flux phase has the lowest energy among those states which exhibit 2×2 charge orders observed experimentally. This state breaks the time-reversal symmetry and displays anomalous Hall effect. The explicit pattern of the density of state in real space is calculated. These results are supported by recent experiments and suggest that these materials are new platforms to investigate the interplay between topology, superconductivity and electron-electron correlations.

Chiral flux phase in the Kagome superconductor AV3Sb5