Quasi-Particle Spectra, Charge-Density-Wave, Superconductivity and Electron-Phonon Coupling in 2H-NbSe2

Preprint

14 August 2003

preprint
Published by arXiv in arXiv

Abstract

High-resolution photoemission has been used to study the electronic structure of the charge density wave (CDW) and superconducting (SC) dichalcogenide, 2H- NbSe2. From the extracted self-energies, important components of the quasiparticle (QP) interactions have been identified. In contrast to previously studied TaSe2, the CDW transition does not affect the electronic properties significantly. The electron-phonon coupling is identified as a dominant contribution to the QP self-energy and is shown to be very anisotropic (k-dependent) and much stronger than in TaSe2.

Keywords

ELECTRON PHONON COUPLING
ELECTRONIC PROPERTIES
CHARGE DENSITY WAVE
PHONON COUPLING
SUPERCONDUCTING
DENSITY WAVE
ENERGIES

All Related Versions

Version 1, 2003-08-14, ArXiv
Version 2, 2003-12-17, ArXiv
Published version: Physical Review Letters, 92 (8), 086401.

This publication has 0 references indexed in Scilit: