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Charge density waves in 1T-TaS2: an angle-resolved photoemission study

Clerc, Florian ; Bovet, M. ; Berger, Helmuth ; Despont, Laurent ; Koitzsch, Christian ; Garnier, Michael Bernard Gunnar ; Aebi, Philipp

In: Surface Science, 2006, vol. 351, no. 3-4, p. 245-249

The transition metal dichalcogenide 1T-TaS2 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...