Competing charge-density wave instabilities in the kagome metal ScV6Sn6

S Cao, C Xu, H Fukui, T Manjo, Y Dong, M Shi… - Nature …, 2023 - nature.com
Owing to its unique geometry, the kagome lattice hosts various many-body quantum states
including frustrated magnetism, superconductivity, and charge-density waves (CDWs). In …

Structural approach to charge density waves in low-dimensional systems: electronic instability and chemical bonding

JP Pouget, E Canadell - Reports on Progress in Physics, 2024 - iopscience.iop.org
The charge density wave (CDW) instability, usually occurring in low-dimensional metals, has
been a topic of interest for longtime. However, some very fundamental aspects of the …

Pressure-Dependent Electronic Superlattice in the Kagome Superconductor

F Stier, AA Haghighirad, G Garbarino, S Mishra… - Physical Review Letters, 2024 - APS
We present a high-resolution single crystal x-ray diffraction study of kagome superconductor
CsV 3 Sb 5, exploring its response to variations in pressure and temperature. We discover …

Elastoresistivity in the incommensurate charge density wave phase of BaNi2(As1−xPx)2

M Frachet, P Wiecki, T Lacmann, SM Souliou… - npj Quantum …, 2022 - nature.com
Electronic nematicity, the breaking of the crystal lattice rotational symmetry by the electronic
fluid, is a fascinating quantum state of matter. In this work, using electronic transport under …

Potential Lifshitz transition at optimal substitution in nematic pnictide Ba1−xSrxNi2As2

DM Narayan, P Hao, R Kurleto, BS Berggren… - Science …, 2023 - science.org
BaNi2As2 is a structural analog of the pnictide superconductor BaFe2As2, which, like the
iron-based superconductors, hosts a variety of ordered phases including charge density …

Phonon softening and slowing-down of charge density wave fluctuations in

Y Song, S Wu, X Chen, Y He, H Uchiyama, B Li, S Cao… - Physical Review B, 2023 - APS
BaNi 2 As 2 is a nonmagnetic analog of the iron pnictide superconductors, and exhibits an
incommensurate charge density wave (IC-CDW) and a sizable elastoresistance. In this …

Charge order near the antiferromagnetic quantum critical point in the trilayer high Tc cuprate HgBa2Ca2Cu3O8+δ

V Oliviero, I Gilmutdinov, D Vignolles… - npj Quantum …, 2024 - nature.com
We study the transport properties of underdoped trilayer cuprate HgBa2Ca2Cu3O8+ δ with
do** level p= 0.10–0.12 in magnetic field up to 88 T. We report for the first time in a …

Possible enhancement of the superconducting due to sharp Kohn-like soft phonon anomalies

C Jiang, E Beneduce, M Baggioli, C Setty… - Journal of Physics …, 2023 - iopscience.iop.org
Phonon softening is a ubiquitous phenomenon in condensed matter systems which is often
associated with charge density wave (CDW) instabilities and anharmonicity. The interplay …

Strong electron-phonon coupling in

L Song, J Si, T Fennell, U Stuhr, G Deng, J Wang, J Liu… - Physical Review B, 2024 - APS
The charge density wave (CDW) or nematicity has been found to coexist with
superconductivity in many systems. Thus, it is interesting that the superconducting transition …

Precursor region with full phonon softening above the charge-density-wave phase transition in 2H-TaSe2

X Shen, R Heid, R Hott, AA Haghighirad… - Nature …, 2023 - nature.com
Research on charge-density-wave (CDW) ordered transition-metal dichalcogenides
continues to unravel new states of quantum matter correlated to the intertwined lattice and …