511 citations · 831 across the 4 of their papers we have counts for
4 papers
Spontaneous exciton condensation in 1T-TiSe2: a BCS-like approach
C. Monney, H. Cercellier, F. Clerc +9
Recently strong evidence has been found in favor of a BCS-like condensation of excitons in 1\textit{T}-TiSe. Theoretical photoemission intensity maps have been generated by the…
Evidence for an excitonic insulator phase in 1T-TiSe
H. Cercellier, C. Monney, F. Clerc +7
We present a new high-resolution angle-resolved photoemission study of 1\textit{T}-TiSe in both, its room-temperature, normal phase and its low-temperature, charge-density wa…
Direct evidence for ferroelectric polar distortion in ultrathin lead titanate perovskite films
L. Despont, C. Lichtensteiger, C. Koitzsch +7
X-ray photoelectron diffraction is used to directly probe the intra-cell polar atomic distortion and tetragonality associated with ferroelectricity in ultrathin epitaxial PbTiO3 fi…
Fermi surface induced lattice distortion in NbTe
Corsin Battaglia, Hervé Cercellier, Florian Clerc +7
The origin of the monoclinic distortion and domain formation in the quasi two-dimensional layer compound NbTe is investigated. Angle-resolved photoemission shows that the Fermi…