surfaces; nanostructures; selfassembly; low dimensional systems; transition metal dichalcogenides; angle-resolved photoemission; Fermi surface mapping; scanning tunneling microscopy and spectroscopy; low energy electron diffraction
Cazzaniga M., Cercellier H., Holzmann M., Monney C., Aebi P., Onida G., Olevano V., Ab initio many-body effects in TiSe2: A possible excitonic insulator scenario from GW band-shape renormalization, in
PHYSICAL REVIEW B, 85(19), 195111.
Monney C., Monney G., Aebi P., Beck H., Electron- hole fluctuation phase in 1T-TiSe2, in
PHYSICAL REVIEW B, 85(23), 235150.
Monney C., Monney G., Aebi P., Beck H., Electron-hole instability in 1T-TiSe2, in
NEW JOURNAL OF PHYSICS, 14, 075026.
Schwier EF, Monney C, Mariotti N, Vydrova Z, Garcia-Fernandez M, Didiot C, Garnier MG, Aebi P, Influence of elastic scattering on the measurement of core-level binding energy dispersion in X-ray photoemission spectroscopy, in
EUROPEAN PHYSICAL JOURNAL B, 81(4), 399-403.
Monney C., Zhou K. J., Cercellier H., Vydrova Z., Garnier M. G., Monney G., Strocov V. N., Berger H., Beck H., Schmitt T., Aebi P., Mapping of Electron-Hole Excitations in the Charge-Density-Wave System 1T-TiSe2 Using Resonant Inelastic X-Ray Scattering, in
PHYSICAL REVIEW LETTERS, 109(4), 047401.
Moser D., Garnier M. G., Karvonen L., Shkabko A., Aebi P., Weidenkaff A., Reversible control of the electronic density of states at the Fermi level of Ca3Co4O9+delta misfit-layered oxide single crystals through O+/H+ plasma exposure, in
JOURNAL OF MATERIALS SCIENCE, 48(7), 2823-2828.
Mariotti N., Didiot C., Schwier E. F., Monney C., Perret-Aebi L. -E., Battaglia C., Garnier M. G., Aebi P., Scanning tunneling microscopy at multiple voltage biases of stable "ring-like" Ag clusters on Si(111)-(7 x 7), in
SURFACE SCIENCE, 606(23-24), 1755-1759.
Schwier E. F., Scherwitzl R., Vydrova Z., Garcia-Fernandez M., Gibert M., Zubko P., Garnier M. G., Triscone J. -M., Aebi P., Unusual temperature dependence of the spectral weight near the Fermi level of NdNiO3 thin films, in
PHYSICAL REVIEW B, 86(19), 195147.
Sanchez-Sanchez C., Garnier M. G., Aebi P., Blanco-Rey M., de Andres P. L., Martin-Gago J. A., Lopez M. F., Valence band electronic structure characterization of the rutile TiO2 (110)-(1 x 2) reconstructed surface, in
SURFACE SCIENCE, 608, 92-96.
Context and significance:The project focuses on fundamental physics concerning the atomic and electronic structure. The main goal is to create new knowledge and better understanding on the quantum mechanics and sub-nanometer level of how electrons and atoms are organized in solids and near surfaces. In particular, the results lead to new views and explanations on the mechanisms behind the extremely variable properties of new and old materials used in various devices and applications. Research in this field is crucial for all developments in relation with new materials. Scientific frame and methodology:The frame and methodology is given by the experimental possibilities. In the present project angle-resolved photoemission and scanning tunneling microscopy and spectroscopy experiments are done. These experiments allow a very detailed investigation of the “organization” of electrons and atoms at the surface and close to it. However, these experiments require well-defined surfaces of the materials under study and stringent vacuum conditions.