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 …

Kagome superconductors AV3Sb5 (A = K, Rb, Cs)

K Jiang, T Wu, JX Yin, Z Wang, MZ Hasan… - National Science …, 2023 - academic.oup.com
The quasi-two-dimensional kagome materials AV3Sb5 (A= K, Rb, Cs) were found to be a
prime example of kagome superconductors, a new quantum platform to investigate the …

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 …

Nodeless electron pairing in CsV3Sb5-derived kagome superconductors

Y Zhong, J Liu, X Wu, Z Guguchia, JX Yin, A Mine, Y Li… - Nature, 2023 - nature.com
The newly discovered kagome superconductors represent a promising platform for
investigating the interplay between band topology, electronic order and lattice geometry …

Tunable unconventional kagome superconductivity in charge ordered RbV3Sb5 and KV3Sb5

Z Guguchia, C Mielke III, D Das, R Gupta, JX Yin… - Nature …, 2023 - nature.com
Unconventional superconductors often feature competing orders, small superfluid density,
and nodal electronic pairing. While unusual superconductivity has been proposed in the …

Time-reversal symmetry broken by charge order in

R Khasanov, D Das, R Gupta, C Mielke III… - Physical Review …, 2022 - APS
The recently discovered vanadium-based kagome metals AV 3 Sb 5 (A= K, Rb, Cs) exhibit
superconductivity at low temperatures and charge density wave (CDW) order at high …

Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV3Sb5 (A = K, Rb, Cs)

R Tazai, Y Yamakawa, S Onari, H Kontani - Science Advances, 2022 - science.org
Exotic quantum phase transitions in metals, such as the electronic nematic state, have been
discovered one after another and found to be universal now. The emergence of …

Bulk evidence of anisotropic s-wave pairing with no sign change in the kagome superconductor CsV3Sb5

M Roppongi, K Ishihara, Y Tanaka, K Ogawa… - Nature …, 2023 - nature.com
The recently discovered kagome superconductors A V3Sb5 (A= K, Rb, Cs) exhibit unusual
charge-density-wave (CDW) orders with time-reversal and rotational symmetry breaking …

Optimized superconductivity in the vicinity of a nematic quantum critical point in the kagome superconductor Cs(V1-xTix)3Sb5

Y Sur, KT Kim, S Kim, KH Kim - Nature Communications, 2023 - nature.com
CsV3Sb5 exhibits superconductivity at T c= 3.2 K after undergoing intriguing two high-
temperature transitions: charge density wave order at~ 98 K and electronic nematic order at …

Nodeless Superconductivity in Kagome Metal CsV3Sb5 with and without Time Reversal Symmetry Breaking

W Zhang, X Liu, L Wang, CW Tsang, Z Wang… - Nano Letters, 2023 - ACS Publications
The kagome metal CsV3Sb5 features an unusual competition between the charge-density-
wave (CDW) order and superconductivity. Evidence for time reversal symmetry breaking …