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 …

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 …

Roton pair density wave in a strong-coupling kagome superconductor

H Chen, H Yang, B Hu, Z Zhao, J Yuan, Y **ng, 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 …

Double Superconducting Dome and Triple Enhancement of in the Kagome Superconductor under High Pressure

KY Chen, NN Wang, QW Yin, YH Gu, K Jiang, ZJ Tu… - Physical Review Letters, 2021 - APS
CsV 3 Sb 5 is a newly discovered Z 2 topological kagome metal showing the coexistence of
a charge-density-wave (CDW)-like order at T*= 94 K and superconductivity (SC) at T c= 2.5 …

Twofold van Hove singularity and origin of charge order in topological kagome superconductor CsV3Sb5

M Kang, S Fang, JK Kim, BR Ortiz, SH Ryu, J Kim… - Nature Physics, 2022 - nature.com
The layered vanadium antimonides AV3Sb5 (A= K, Rb, Cs) are a recently discovered family
of topological kagome metals that exhibit a range of strongly correlated electronic phases …

A unique van Hove singularity in kagome superconductor CsV3-xTaxSb5 with enhanced superconductivity

Y Luo, Y Han, J Liu, H Chen, Z Huang, L Huai… - Nature …, 2023 - nature.com
Van Hove singularity (VHS) has been considered as a driving source for unconventional
superconductivity. A VHS in two-dimensional (2D) materials consists of a saddle point …

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 …

Electronic nature of charge density wave and electron-phonon coupling in kagome superconductor KV3Sb5

H Luo, Q Gao, H Liu, Y Gu, D Wu, C Yi, J Jia… - Nature …, 2022 - nature.com
Abstract The Kagome superconductors AV3Sb5 (A= K, Rb, Cs) have received enormous
attention due to their nontrivial topological electronic structure, anomalous physical …