transition metal dichalcogenides; Surfaces; low dimensional systems; angle-resolved photoemission; low energy electron diffraction; scanning tunneling microscopy and spectroscopy; Fermi surface mapping; Oxide-based materials
Mottas M.-L., Jaouen T., Hildebrand B., Rumo M., Vanini F., Razzoli E., Giannini E., Barreteau C., Bowler D. R., Monney C., Beck H., Aebi P. (2019), Semimetal-to-semiconductor transition and charge-density-wave suppression in 1T−TiSe2−xSx single crystals, in
Physical Review B, 99(15), 155103-155103.
Hildebrand B., Jaouen T., Mottas M.-L., Monney G., Barreteau C., Giannini E., Bowler D. R., Aebi P. (2018), Local Real-Space View of the Achiral 1T−TiSe22×2×2 Charge Density Wave, in
Physical Review Letters, 120(13), 136404-136404.
Monney C., Schuler A., Jaouen T., Mottas M.-L., Wolf Th., Merz M., Muntwiler M., Castiglioni L., Aebi P., Weber F., Hengsberger M. (2018), Robustness of the charge-ordered phases in IrTe2 against photoexcitation, in
Physical Review B, 97(7), 075110-075110.
Roose Bart, Johansen Christian M., Dupraz Kevin, Jaouen Thomas, Aebi Philipp, Steiner Ullrich, Abate Antonio (2018), A Ga-doped SnO 2 mesoporous contact for UV stable highly efficient perovskite solar cells, in
Journal of Materials Chemistry A, 6(4), 1850-1857.
Razzoli E., Matt C. E., Sassa Y., Månsson M., Tjernberg O., Drachuck G., Monomo M., Oda M., Kurosawa T., Huang Y., Plumb N. C., Radovic M., Keren A., Patthey L., Mesot J., Shi M. (2017), Rotation symmetry breaking in La2−xSrxCuO4 revealed by angle-resolved photoemission spectroscopy, in
Physical Review B, 95(22), 224504-224504.
Razzoli E., Jaouen T., Mottas M.-L., Hildebrand B., Monney G., Pisoni A., Muff S., Fanciulli M., Plumb N. C., Rogalev V. A., Strocov V. N., Mesot J., Shi M., Dil J. H., Beck H., Aebi P. (2017), Selective Probing of Hidden Spin-Polarized States in Inversion-Symmetric Bulk MoS2, in
Physical Review Letters, 118(8), 086402-086402.
Jaouen T., Hildebrand B., Aebi P., Delhaye G., Tricot S., Lépine B., Jézéquel G., Schieffer P. (2017), Band Bending in Mg-Colored and O 2 -Activated Ultrathin MgO(001) Films, in
The Journal of Physical Chemistry C, 121(8), 4363-4367.
Hildebrand B., Jaouen T., Didiot C., Razzoli E., Monney G., Mottas M.-L., Vanini F., Barreteau C., Ubaldini A., Giannini E., Berger H., Bowler D. R., Aebi P. (2017), Local resilience of the 1T−TiSe2 charge density wave to Ti self-doping, in
Physical Review B, 95(8), 081104-081104.
Muntwiler Matthias, Zhang Jun, Stania Roland, Matsui Fumihiko, Oberta Peter, Flechsig Uwe, Patthey Luc, Quitmann Christoph, Glatzel Thilo, Widmer Roland, Meyer Ernst, Jung Thomas A., Aebi Philipp, Fasel Roman, Greber Thomas (2017), Surface science at the PEARL beamline of the Swiss Light Source, in
Journal of Synchrotron Radiation, 24(1), 354-366.
Hildebrand B., Jaouen T., Didiot C., Razzoli E., Monney G., Mottas M.-L., Ubaldini A., Berger H., Barreteau C., Beck H., Bowler D. R., Aebi P. (2016), Short-range phase coherence and origin of the 1T−TiSe2 charge density wave, in
Physical Review B, 93(12), 125140-125140.
Hoesch Moritz, Garbarino Gaston, Battaglia Corsin, Aebi Philipp, Berger Helmuth (2016), Evolution of the charge density wave superstructure in ZrTe3 under pressure, in
Physical Review B, 93(12), 125102-125102.
Matt C. E., Fatuzzo C. G., Sassa Y., Månsson M., Fatale S., Bitetta V., Shi X., Pailhès S., Berntsen M. H., Kurosawa T., Oda M., Momono N., Lipscombe O. J., Hayden S. M., Yan J.-Q., Zhou J.-S., Goodenough J. B., Pyon S., Takayama T., Takagi H., Patthey L., Bendounan A., Razzoli E., Shi M., et al. (2015), Electron scattering, charge order, and pseudogap physics in La1.6−xNd0.4SrxCuO4 : An angle-resolved photoemission spectroscopy study, in
Physical Review B, 92(13), 134524-134524.
Novello A. M., Hildebrand B., Scarfato A., Didiot C., Monney G., Ubaldini A., Berger H., Bowler D. R., Aebi P., Renner Ch. (2015), Scanning tunneling microscopy of the charge density wave in 1T−TiSe2 in the presence of single atom defects, in
Physical Review B, 92(8), 081101-081101.
Dhaka R. S., Das Tanmoy, Plumb N. C., Ristic Z., Kong W., Matt C. E., Xu N., Dolui Kapildeb, Razzoli E., Medarde M., Patthey L., Shi M., Radović M., Mesot Joël (2015), Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin fluctuations, in
Physical Review B, 92(3), 035127-035127.
Vydrova Z., Schwier E. F., Monney G., Jaouen T., Razzoli E., Monney C., Hildebrand B., Didiot C., Berger H., Schmitt T., Strocov V. N., Vanini F., Aebi P. (2015), Three-dimensional momentum-resolved electronic structure of 1T−TiSe2: A combined soft-x-ray photoemission and density functional theory study, in
Physical Review B, 91(23), 235129-235129.
Razzoli E., Matt C. E., Kobayashi M., Wang X.-P., Strocov V. N., van Roekeghem A., Biermann S., Plumb N. C., Radovic M., Schmitt T., Capan C., Fisk Z., Richard P., Ding H., Aebi P., Mesot J., Shi M. (2015), Tuning electronic correlations in transition metal pnictides: Chemistry beyond the valence count, in
Physical Review B, 91(21), 214502-214502.
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: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.