Charge Order in NbSe${}_2$

Abstract

We develop in detail a model of the charge order in NbSe${}_2$ deriving from a strong electron-phonon coupling dependent on the ingoing and outgoing electron momenta as well as the electronic orbitals scattered between. Including both dependencies allows us to reproduce the full range of available experimental observations on this material. The stability of both experimentally-observed charge-ordered geometries (1Q and 3Q) is studied within this model as a function of temperature and uniaxial strain. It is found that a small amount of bulk strain suffices to stabilize the unidirectional order, and that in both ordering geometries, lattice fluctuations arising from the strong electron-phonon coupling act to suppress the onset temperature of charge order, giving a pseudogap regime characterized by local order and strong phase fluctuations.

18 pages, 22 figures

References in corpus (8)

• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Appearance of fluctuating stripes at the onset of the pseudogap in the high-Tc Superconductor Bi2Sr2CaCu2O8+x
• Two energy gaps and Fermi surface 'arcs' in NbSe2
• A quantum phase transition from triangular to stripe charge order in NbSe${}_2$
• Emergence of coherence in the charge-density wave state of 2H-NbSe${}_2$
• Charge Order from Orbital-dependent Coupling Evidenced by NbSe${}_2$
• Ba1-xNaxTi2Sb2O (0.0 <= x <= 0.33): A Layered Titanium-based Pnictide Oxide Superconductor
• Charge Ordering Geometries in Uniaxially-Strained NbSe${}_2$

Cited by in corpus (26)

• Enhanced Superconductivity and Suppression of Charge-density Wave Order in 2H-TaS${}_2$ in the Two-dimensional Limit
• Atomic-Scale Strain Manipulation of a Charge Density Wave
• Competing Coulomb and electron-phonon interactions in NbS${}_2$
• Orbital selectivity causing anisotropy and particle-hole asymmetry in the charge density wave gap of $2H$-TaS${}_2$
• Spectroscopic signature of the $\mathbf{k}$-dependent electron-phonon coupling in $2H$-TaS${}_2$
• Absence of superconducting dome at the charge-density-wave quantum phase transition in 2H-NbSe2
• Coexisting charge-ordered states with distinct driving mechanisms in monolayer VSe${}_2$
• Fermiology and electron-phonon coupling in the 2H and 3R polytypes of NbS${}_2$
• Quantum phase transition in few-layer NbSe${}_2$ probed through quantized conductance fluctuations
• Nontrivial Metallic State of Molybdenum Disulfide
• Charge order from structured coupling in VSe${}_2$
• Observation of orbital order in the Van der Waals material 1T-TiSe2
• Controlling charge density order in 2H-TaSe${}_2$ using a van Hove singularity
• $B^2$ to $B$-linear magnetoresistance due to impeded orbital motion
• General theoretical description of angle-resolved photoemission spectroscopy of van der Waals structures
• Charge Density Waves and the Effects of Uniaxial Strain on the Electronic Structure of 2H-NbSe${}_2$
• Emergent charge density wave featuring quasi-one-dimensional chains in Ta-intercalated bilayer 2$H$-TaS${}_2$ with coexisting superconductivity
• In-plane anisotropy of charge density wave fluctuations in 1$T$-TiSe${}_2$
• Electron-hole response function of transition metal trichalcogenides NbSe${}_3$ and monoclinic-TaS${}_3$
• Unconventional pairing in Ising superconductors: Application to monolayer NbSe${}_2$
• Strong correlation between $H$-linear magnetoresistance and strange metal in FeSe superconductor
• Incommensurate charge density wave on multiband intermetallic systems exhibiting competing orders
• $H$-linear magnetoresistance in NbSe${}_2$ due to impeded cyclotron motion
• Interlayer coupling driven stabilization and superconductivity in bilayer CoTe${}_2$
• Multiband charge density wave exposed in a transition metal dichalcogenide
• Giant Kohn anomaly and chiral phonons in the charge density wave phase of 1H-NbSe${}_2$