Topological kagome magnets and superconductors

JX Yin, B Lian, MZ Hasan - Nature, 2022 - nature.com
A kagome lattice naturally features Dirac fermions, flat bands and van Hove singularities in
its electronic structure. The Dirac fermions encode topology, flat bands favour correlated …

Charge order and superconductivity in kagome materials

T Neupert, MM Denner, JX Yin, R Thomale, MZ Hasan - Nature Physics, 2022 - nature.com
Lattice geometry, topological electron behaviour and the competition between different
possible ground states all play a role in determining the properties of materials with a …

Charge-density-wave-driven electronic nematicity in a kagome superconductor

L Nie, K Sun, W Ma, D Song, L Zheng, Z Liang, P Wu… - Nature, 2022 - nature.com
Electronic nematicity, in which rotational symmetry is spontaneously broken by electronic
degrees of freedom, has been demonstrated as a ubiquitous phenomenon in correlated …

Discovery of charge density wave in a kagome lattice antiferromagnet

X Teng, L Chen, F Ye, E Rosenberg, Z Liu, JX Yin… - Nature, 2022 - nature.com
A hallmark of strongly correlated quantum materials is the rich phase diagram resulting from
competing and intertwined phases with nearly degenerate ground-state energies,. A well …

Three-state nematicity and magneto-optical Kerr effect in the charge density waves in kagome superconductors

Y Xu, Z Ni, Y Liu, BR Ortiz, Q Deng, SD Wilson, B Yan… - Nature physics, 2022 - nature.com
The kagome lattice provides a fascinating playground to study geometrical frustration,
topology and strong correlations. The newly discovered kagome metals AV3Sb5 (where A …

Time-reversal symmetry-breaking charge order in a kagome superconductor

C Mielke III, D Das, JX Yin, H Liu, R Gupta, YX Jiang… - Nature, 2022 - nature.com
The kagome lattice, which is the most prominent structural motif in quantum physics, benefits
from inherent non-trivial geometry so that it can host diverse quantum phases, ranging from …

Roton pair density wave in a strong-coupling kagome superconductor

H Chen, H Yang, B Hu, Z Zhao, J Yuan, Y Xing, G Qian… - Nature, 2021 - nature.com
The transition metal kagome lattice materials host frustrated, correlated and topological
quantum states of matter,,,,,,,–. Recently, a new family of vanadium-based kagome metals …

Three-Dimensional Charge Density Wave and Surface-Dependent Vortex-Core States in a Kagome Superconductor

Z Liang, X Hou, F Zhang, W Ma, P Wu, Z Zhang, F Yu… - Physical Review X, 2021 - APS
The transition-metal-based kagome metals provide a versatile platform for correlated
topological phases hosting various electronic instabilities. While superconductivity is rare in …

Pressure-induced reemergence of superconductivity in the topological kagome metal

Z Zhang, Z Chen, Y Zhou, Y Yuan, S Wang, J Wang… - Physical Review B, 2021 - APS
Quasi-two-dimensional kagome metals AV 3 Sb 5 (A= K, Rb, and Cs) have attracted much
recent interest due to exotic quantum phenomena such as unconventional …

Unconventional chiral charge order in kagome superconductor KV3Sb5

YX Jiang, JX Yin, MM Denner, N Shumiya, BR Ortiz… - Nature materials, 2021 - nature.com
Intertwining quantum order and non-trivial topology is at the frontier of condensed matter
physics,,–. A charge-density-wave-like order with orbital currents has been proposed for …