Van Hove annihilation and nematic instability on a kagome lattice

YX Jiang, S Shao, W Xia, MM Denner, J Ingham… - Nature Materials, 2024 - nature.com
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 …

Nature of charge density wave in kagome metal ScV6Sn6

S Lee, C Won, J Kim, J Yoo, S Park, J Denlinger… - npj Quantum …, 2024 - nature.com
Recently, kagome lattice materials have emerged as a new model material platform for
discovering and engineering novel quantum phases of matter. In this work, we elucidate the …

Origin of competing charge density waves in kagome metal ScV6Sn6

K Wang, S Chen, SW Kim, B Monserrat - Nature Communications, 2024 - nature.com
Understanding competing charge density wave (CDW) orders in the bilayer kagome metal
ScV6Sn6 remains challenging. Experimentally, upon cooling, short-range order with wave …

Universal sublinear resistivity in vanadium kagome materials hosting charge density waves

S Mozaffari, WR Meier, RP Madhogaria… - Physical Review B, 2024 - APS
The recent discovery of a charge density (CDW) state in ScV 6 Sn 6 at T CDW= 91 K offers
new opportunities to understand the origins of electronic instabilities in topological kagome …

Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins

R Guehne, J Noky, C Yi, C Shekhar… - Nature …, 2024 - nature.com
The kagome network is a unique platform that harbors a diversity of special electronic states
due to its inherent band structure features comprising Dirac cones, van Hove singularities …

Unveiling the charge density wave mechanism in vanadium-based Bi-layered kagome metals

YC Yang, S Cho, TR Li, XQ Liu, ZT Liu, ZC Jiang… - NPG Asia …, 2024 - nature.com
The charge density wave (CDW), as a hallmark of vanadium-based kagome superconductor
AV3Sb5 (A= K, Rb, Cs), has attracted intensive attention. However, the fundamental …

Frustrated Ising charge correlations in the kagome metal

SJG Alvarado, G Pokharel, BR Ortiz, JAM Paddison… - Physical Review B, 2024 - APS
Here we resolve the real-space nature of the high-temperature, short-range charge
correlations in the kagome metal ScV 6 Sn 6. Diffuse scattering appears along a frustrated …

Low-energy electronic structure in the unconventional charge-ordered state of ScV6Sn6

AK Kundu, X Huang, E Seewald, E Ritz… - Nature …, 2024 - nature.com
Abstract Kagome vanadates A V3Sb5 display unusual low-temperature electronic properties
including charge density waves (CDW), whose microscopic origin remains unsettled …

Coherent phonon and unconventional carriers in the magnetic kagome metal Fe3Sn2

MV Gonçalves-Faria, A Pashkin, Q Wang, HC Lei… - npj Quantum …, 2024 - nature.com
Temperature-and fluence-dependent carrier dynamics of the magnetic kagome metal
Fe3Sn2 were studied using the ultrafast optical pump-probe technique. Two carrier …

Theory of excitonic order in ScVSn

J Ingham, A Consiglio, D di Sante, R Thomale… - arXiv preprint arXiv …, 2024 - arxiv.org
We argue that kagome metals can feature an excitonic condensate of unconventional
nature. Studying the recently discovered variant ScV $ _6 $ Sn $ _6 $, we identify electron …