Fermi surface induced lattice distortion in NbTe${}_2$

Abstract

The origin of the monoclinic distortion and domain formation in the quasi two-dimensional layer compound NbTe${}_2$ is investigated. Angle-resolved photoemission shows that the Fermi surface is pseudogapped over large portions of the Brillouin zone. Ab initio calculation of the electron and phonon bandstructure as well as the static RPA susceptibility lead us to conclude that Fermi surface nesting and electron-phonon coupling play a key role in the lowering of the crystal symmetry and in the formation of the charge density wave phase.

References in corpus (5)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Spectroscopic signatures of a bandwidth-controlled Mott transition at the surface of 1T-TaSe${}_2$
• Photoemission spectra of many-polaron systems
• Single-particle excitations and phonon softening in the one-dimensional spinless Holstein model
• Photoemission spectroscopy and sum rules in dilute electron-phonon systems

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• Manipulating charge-density-wave in $1T$-TaS${}_2$ by charge carrier doping: A first-principles investigation
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• Unveiling the orbital-selective electronic band reconstruction through the structural phase transition in TaTe${}_2$
• Effects of Structural Distortions on the Electronic Structure of T-type Transition Metal Dichalcogenides
• Comparative study of Kondo effect in Vanadium dichalcogenides VX${}_2$ (X=Se & Te)
• Unusual photoinduced crystal structure dynamics in TaTe${}_2$ with double zigzag chain superstructure
• Modulating Peierls distortion of 1T_prime MoS2 via charge doping: a new charge density wave phase, reversible phase transition, and excellent electromechanical properties
• Electronic Landscape of Group-5 Transition Metal Ditellurides $M$Te${}_2$ ($M$ = V, Nb, Ta): Multiple Crystal Phases with Local Bonds and Flat Bands
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