Consortium of Swiss Academic Libraries

Internal structure of fluctuating Cooper pairs

Andrenacci, N. ; Capezzali, M. ; Beck, H.

In: The European Physical Journal B - Condensed Matter and Complex Systems, 2006, vol. 53, no. 4, p. 417-432

Université de Neuchâtel

Evidence for an Excitonic Insulator Phase in 1T–TaS2

Cercellier, H. ; Monney, Claude ; Clerc, F. ; Battaglia, Corsin ; Despont, Laurent ; Garnier, Michael Bernard Gunnar ; Beck, H. ; Aebi, Philipp ; Patthey, L. ; Berger, H. ; Forró, L.

In: Physical Review Letters, 2007, vol. 99, no. 146403, p. 1-4

We present a new high-resolution angle-resolved photoemission study of 1T–TaS2 in both its room-temperature, normal phase and its low-temperature, charge-density wave phase. At low temperature the photoemission spectra are strongly modified, with large band renormalizations at high-symmetry points of the Brillouin zone and a very large transfer of spectral weight to backfolded...