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Charge density waves in 1<i>T</i>-TaS<sub>2</sub>: an angle-resolved photoemission study

Auteur(s)
Clerc, Florian
Editeur(s)
Bovet, M.
Berger, Helmuth
Despont, Laurent
Koitzsch, Christian
Garnier, Michael Bernard Gunnar
Aebi, Philipp
Date de parution
2004
In
Surface Science, Elsevier, 2006/351/3-4/245-249
Mots-clés
Résumé
The transition metal dichalcogenide 1<i>T</i>-TaS<sub>2</sub> is a layered material exhibiting charge density waves. Based on angle-resolved photoemission experiments mapping spectral weight at the Fermi surface and density functional theory calculations we discuss possible mechanisms involved with the creation of charge density waves. At first the flat parts of the elliptically shaped Fermi surface appear to play an important role via Fermi surface nesting. A closer analysis of the charge density wave induced new Brillouin zones and the possible energy balance between elastic deformation energy and electronic energy points to a more complicated scenario.
URI
DOI
Autre version
http://dx.doi.org/10.1016/j.physb.2004.06.016
Type de publication
Resource Types::text::journal::journal article
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