Competition between charge-density-wave and superconductivity in the kagome metal

NN Wang, KY Chen, QW Yin, YNN Ma, BY Pan… - Physical Review …, 2021 - APS
The interplay between charge-density-wave (CDW) order and superconductivity (SC) in the
kagome metal Rb V 3 Sb 5 is studied by tracking the evolutions of their transition …

Emergence of coherence in the charge-density wave state of 2H-NbSe2

U Chatterjee, J Zhao, M Iavarone, R Di Capua… - Nature …, 2015 - nature.com
A charge-density wave (CDW) state has a broken symmetry described by a complex order
parameter with an amplitude and a phase. The conventional view, based on clean, weak …

Molecular beam epitaxy growth and scanning tunneling microscopy study of ultrathin films

JP Peng, JQ Guan, HM Zhang, CL Song, L Wang, K He… - Physical Review B, 2015 - APS
Molecular beam epitaxy is used to grow TiSe 2 ultrathin films on a graphitized SiC (0001)
substrate. TiSe 2 films proceed via a nearly layer-by-layer growth mode and exhibit two …

Superconducting order from disorder in 2H-TaSe2−xSx

L Li, X Deng, Z Wang, Y Liu, M Abeykoon… - npj Quantum …, 2017 - nature.com
We report on the emergence of robust superconducting order in single crystal alloys of
TaSe2− x S x (0≤×≤ 2). The critical temperature of the alloy is surprisingly higher than that …

Charge density wave with strong quantum phase fluctuations in Kagome magnet FeGe

Z Chen, X Wu, R Yin, J Zhang, S Wang, Y Li… - arxiv preprint arxiv …, 2023 - arxiv.org
Charge density wave (CDW) can be characterized by the amplitude of its charge modulation
and the spatial phase coherence amongst CDW superlattice unit cells. The phase …

Electron-phonon coupling, critical temperatures, and gaps in Ising superconductors

S Patel, S Jena, A Taraphder - Physical Review B, 2024 - APS
Utilizing Migdal-Eliashberg theory of superconductivity within the first-principles calculations,
we work out the role of electron-phonon coupling (EPC) and anisotropic superconducting …

Order, criticality, and excitations in the extended Falicov-Kimball model

S Ejima, T Kaneko, Y Ohta, H Fehske - Physical Review Letters, 2014 - APS
Using exact numerical techniques, we investigate the nature of excitonic (electron-hole)
bound states and the development of exciton coherence in the one-dimensional half-filled …

Charge-density wave induced by combined electron-electron and electron-phonon interactions in : A variational Monte Carlo study

H Watanabe, K Seki, S Yunoki - Physical Review B, 2015 - APS
To clarify the origin of a charge-density wave (CDW) phase in 1 T-TiSe 2, we study the
ground-state property of a half-filled two-band Hubbard model in a triangular lattice …

Charge density wave and superconductivity in transition metal dichalcogenides

S Koley, N Mohanta, A Taraphder - The European Physical Journal B, 2020 - Springer
Competing orders in condensed matter give rise to the emergence of fascinating, new
phenomena. Here, we investigate the competition between superconductivity and charge …

Interplay between charge density wave order and magnetic field in the nonmagnetic rare-earth tritelluride

A Pariari, S Koley, S Roy, R Singha, MS Laad… - Physical Review B, 2021 - APS
Charge density wave (CDW) states in solids bear an intimate connection to underlying
fermiology. Thus, modification of the latter by suitable perturbations provides an attractive …