Three-dimensional Fermi surface of 2H-NbSe${}_2$ - Implications for the mechanism of charge density waves

Abstract

We investigate the three-dimensional electronic structure of the seminal charge-density-wave (CDW) material 2H-NbSe${}_2$ by soft x-ray angle-resolved photoelectron spectroscopy and density-functional theory. Our results reveal the pronounced 3D character of the electronic structure formed in the quasi-two-dimensional layered crystal structure. In particular, we find a strong dispersion along $k_z$ excluding a nesting-driven CDW formation based on experimental data. The 3D-like band structure of 2H-NbSe${}_2$ has strong implications for the intriguing phase competition of CDW order with superconductivity.

References in corpus (20)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Superconductivity in Cu_xTiSe_2
• Strongly enhanced charge-density-wave order in monolayer NbSe${}_2$
• Characterization of collective ground states in single-layer NbSe2
• Extended Phonon Collapse and the Origin of the Charge-Density-Wave in NbSe${}_2$
• Two energy gaps and Fermi surface 'arcs' in NbSe2
• Emergence of coherence in the charge-density wave state of 2H-NbSe${}_2$
• Pressure induced effects on the Fermi surface of superconducting 2H-NbSe${}_2$
• Strong anharmonicity induces quantum melting of charge density wave in 2H-NbSe$\_2$ under pressure
• Charge Order from Orbital-dependent Coupling Evidenced by NbSe${}_2$
• Fermi surface nesting in several transition metal dichalcogenides
• Pressure dependence of the charge-density-wave and superconducting states in GdTe${}_3$, TbTe${}_3$ and DyTe${}_3$
• Giant Kohn anomaly and the phase transition in charge density wave ZrTe_3
• Pressure induced superconductivity in the charge density wave compound TbTe3
• Three-Dimensional Electronic Structure of type-II Weyl Semimetal WTe${}_2$
• Primary role of the barely occupied states in the charge density wave formation of NbSe2
• Optic phonons and the soft mode in 2H-NbSe2
• Weakly-correlated nature of ferromagnetism in non symmorphic CrO${}_2$ revealed by bulk-sensitive soft X ray ARPES
• Band- and k-dependent Self-Energy Effects in the Unoccupied and Occupied Quasiparticle Band Structure of Cu
• Fermi surface and effective masses in photoemission response of the (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ superconductor

Cited by in corpus (19)

• Phonon collapse and van der Waals melting of the 3D charge density wave of VSe${}_2$
• Electronic properties of type-II Weyl semimetal WTe${}_2$. A review perspective
• Directional massless Dirac fermions in a layered van der Waals material with one-dimensional long-range order
• Role of intercalated Cobalt in the electronic structure of Co${}_{1/3}$NbS${}_2$
• Ultrafast dynamics in normal and Charge Density Wave phase of 2H-NbSe2
• Protection of Ising spin-orbit coupling in bulk misfit superconductors
• Momentum-resolved electronic band structure and offsets in an epitaxial NbN/GaN superconductor/semiconductor heterojunction
• Probing the interlayer coupling in 2$H$-NbS${}_2$ via soft x-ray angle-resolved photoemission spectroscopy
• Role of a higher dimensional interaction in stabilizing charge density waves in quasi-1D NbSe${}_3$ revealed by angle-resolved photoemission spectroscopy
• Possible unconventional pairing in $(\text{Ca,Sr}{)}_3(\text{Ir,Rh}{)}_4{\text{Sn}}_{13}$ superconductors revealed by controlling disorder
• Precursor phase with full phonon softening above the charge-density-wave phase transition in $2H$-TaSe${}_2$
• One-dimensional electronic states in a natural misfit structure
• Electron-phonon coupling and superconductivity-induced distortion of the phonon lineshape in V${}_3$Si
• Electron-momentum dependence of electron-phonon coupling underlies dramatic phonon renormalization in YNi${}_2$B${}_2$C
• Hydrogen-impurity induced unconventional magnetism in semiconducting molybdenum ditelluride
• Probing enhanced superconductivity in van der Waals polytypes of V${}_x$TaS${}_2$
• Influence of surface relaxations on scanning probe microscopy images of the charge density wave material 2H-NbSe${}_2$
• k-Resolved electronic structure of buried heterostructure and impurity systems by soft-X-ray ARPES
• Correlation-driven origin of shallow electron pocket in Co${}_{1/3}$TaS${}_2$ revealed by ARPES and cluster perturbation theory