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

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dc.creatorValla, T.
dc.creatorFedorov, A. V.
dc.creatorJohnson, P. D.
dc.creatorGlans, P-A.
dc.creatorMcGuinness, C.
dc.creatorSmith, K. E.
dc.creatorAndrei, E. Y.
dc.creatorBerger, H.
dc.date2003-08-14
dc.date2003-12-17
dc.date.accessioned2026-07-07T06:33:16Z
dc.date.available2026-07-07T06:33:16Z
dc.descriptionHigh-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.
dc.description4 pages, 3 figures, minor changes, to appear in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0308278
dc.identifierhttp://arxiv.org/abs/cond-mat/0308278
dc.identifierPhys. Rev. Lett. 92, 086401 (2004).
dc.identifierdoi:10.1103/PhysRevLett.92.086401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99139
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleQuasi-Particle Spectra, Charge-Density-Wave, Superconductivity and Electron-Phonon Coupling in 2H-NbSe2
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