ARPES; low-dimensional; strong correlations; electronic properties; new materials; quantum matter
Mazet T., Malterre D., Francois M., Eichenberger L., Grioni M., Dallera C., Monaco G. (2015), Composition and temperature dependence of the Yb valence in YbMn6Ge6-xSnx studied by RIXS, in PHYSICAL REVIEW B
, 92(7), 075105.
Moser S., Fatale S., Krueger P., Berger H., Bugnon P., Magrez A., Niwa H., Miyawaki J., Harada Y., Grioni M. (2015), Electron-Phonon Coupling in the Bulk of Anatase TiO2 Measured by Resonant Inelastic X-Ray Spectroscopy, in PHYSICAL REVIEW LETTERS
, 115(9), 096404.
Johannsen J. C., Autes G., Crepaldi A., Moser S., Casarin B., Cilento F., Zacchigna M., Berger H., Magrez A., Bugnon Ph., Avila J., Asensio M. C., Parmigiani F., Yazyev O. V., Grioni M. (2015), Engineering the topological surface states in the (Sb-2)(m)-Sb2Te3 (m=0-3) superlattice series, in PHYSICAL REVIEW B
, 91(20), 201101.
Cacho C., Crepaldi A., Battiato M., Braun J., Cilento F., Zacchigna M., Richter M. C., Heckmann O., Springate E., Liu Y., Dhesi S. S., Berger H., Bugnon Ph., Held K., Grioni M., Ebert H., Hricovini K., Minar J., Parmigiani F. (2015), Momentum-Resolved Spin Dynamics of Bulk and Surface Excited States in the Topological Insulator Bi2Se3, in PHYSICAL REVIEW LETTERS
, 114(9), 097401.
Ulstrup Soren, Johannsen Jens Christian, Cilento Federico, Crepaldi Alberto, Miwa Jill A., Zacchigna Michele, Cacho Cephise, Chapman Richard T., Springate Emma, Fromm Felix, Raidel Christian, Seyller Thomas, King Phil D. C., Parmigiani Fulvio, Grioni Marco, Hofmann Philip (2015), Ramifications of optical pumping on the interpretation of time-resolved photoemission experiments on graphene, in JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
, 200, 340-346.
Fatuzzo C. G., Dantz M., Fatale S., Olalde-Velasco P., Shaik N. E., Piazza B. Dalla, Toth S., Pelliciari J., Fittipaldi R., Vecchione A., Kikugawa N., Brooks J. S., Ronnow H. M., Grioni M., Rueegg Ch., Schmitt T., Chang J. (2015), Spin-orbit-induced orbital excitations in Sr2RuO4 and Ca2RuO4: A resonant inelastic x-ray scattering study, in PHYSICAL REVIEW B
, 91(15), 155104.
Fatuzzo C. G., Dantz M., Fatale S., Olalde-Velasco P., Shaik N. E., Dalla Piazza B., Toth S., Pelliciari J., Fittipaldi R., Vecchione A., Kikugawa N., Brooks J. S., Ronnow H. M., Grioni M., Rueegg Ch., Schmitt T., Chang J. (2015), Spin-orbit-induced orbital excitations in Sr2RuO4 and Ca2RuO4: A resonant inelastic x-ray scattering study (vol 91, 155104, 2015), in PHYSICAL REVIEW B
, 91(19), 199904.
Johannsen Jens Christian, Ulstrup Soren, Crepaldi Alberto, Cilento Federico, Zacchigna Michele, Miwa Jill A., Cacho Cephise, Chapman Richard T., Springate Emma, Fromm Felix, Raidel Christian, Seyller Thomas, King Phil D. C., Parmigiani Fulvio, Grioni Marco, Hofmann Philip (2015), Tunable Carrier Multiplication and Cooling in Graphene, in NANO LETTERS
, 15(1), 326-331.
Ulstrup Soren, Johannsen Jens Christian, Crepaldi Alberto, Cilento Federico, Zacchigna Michele, Cacho Cephise, Chapman Richard T., Springate Emma, Fromm Felix, Raidel Christian, Seyller Thomas, Parmigiani Fulvio, Grioni Marco, Hofmann Philip (2015), Ultrafast electron dynamics in epitaxial graphene investigated with time- and angle-resolved photoemission spectroscopy, in JOURNAL OF PHYSICS-CONDENSED MATTER
, 27(16), 164206.
Moser S., Moreschini L., Yang H. -Y., Innocenti D., Fuchs F., Hansen N. H., Chang Y. J., Kim K. S., Walter A. L., Bostwick A., Rotenberg E., Mila F., Grioni M. (2014), Angle-Resolved Photoemission Spectroscopy of Tetragonal CuO: Evidence for Intralayer Coupling Between Cupratelike Sublattices, in PHYSICAL REVIEW LETTERS
, 113(18), 187001.
Guarise M., Dalla Piazza B., Berger H., Giannini E., Schmitt T., Ronnow H. M., Sawatzky G. A., van den Brink J., Altenfeld D., Eremin I., Grioni M. (2014), Anisotropic softening of magnetic excitations along the nodal direction in superconducting cuprates, in NATURE COMMUNICATIONS
, 5, 6760.
Tournier-Colletta C., Autes G., Kierren B., Bugnon Ph., Berger H., Fagot-Revurat Y., Yazyev O. V., Grioni M., Malterre D. (2014), Atomic and electronic structure of a Rashba p-n junction at the BiTeI surface, in PHYSICAL REVIEW B
, 89(8), 085402.
Moreschini L., Moser S., Ebrahimi A., Dalla Piazza B., Kim K. S., Boseggia S., McMorrow D. F., Ronnow H. M., Chang J., Prabhakaran D., Boothroyd A. T., Rotenberg E., Bostwick A., Grioni M. (2014), Bilayer splitting and wave functions symmetry in Sr3Ir2O7, in PHYSICAL REVIEW B
, 89(20), 201114.
Moreschini L., Lin P. -H., Lin C. -H., Ku W., Innocenti D., Chang Y. J., Walter A. L., Kim K. S., Brouet V., Yeh K. -W., Wu M. -K., Rotenberg E., Bostwick A., Grioni M. (2014), Consequences of Broken Translational Symmetry in FeSexTe1-x, in PHYSICAL REVIEW LETTERS
, 112(8), 087602.
Crepaldi A., Cilento F., Zacchigna M., Zonno M., Johannsen J. C., Tournier-Colletta C., Moreschini L., Vobornik I., Bondino F., Magnano E., Berger H., Magrez A., Bugnon Ph., Autes G., Yazyev O. V., Grioni M., Parmigiani F. (2014), Momentum and photon energy dependence of the circular dichroic photoemission in the bulk Rashba semiconductors BiTeX (X = I, Br, Cl), in PHYSICAL REVIEW B
, 89(12), 125408.
Fatuzzo C. G., Sassa Y., Mansson M., Pailhes S., Lipscombe O. J., Hayden S. M., Patthey L., Shi M., Grioni M., Ronnow H. M., Mesot J., Tjernberg O., Chang J. (2014), Nodal Landau Fermi-liquid quasiparticles in overdoped La1.77Sr0.23CuO4, in PHYSICAL REVIEW B
, 89(20), 205104.
Moser S., Moreschini L., Ebrahimi A., Dalla Piazza B., Isobe M., Okabe H., Akimitsu J., Mazurenko V. V., Kim K. S., Bostwick A., Rotenberg E., Chang J., Ronnow H. M., Grioni M. (2014), The electronic structure of the high-symmetry perovskite iridate Ba2IrO4, in NEW JOURNAL OF PHYSICS
, 16, 013008.
Ulstrup Soren, Johannsen Jens Christian, Cilento Federico, Miwa Jill A., Crepaldi Alberto, Zacchigna Michele, Cacho Cephise, Chapman Richard, Springate Emma, Mammadov Samir, Fromm Felix, Raidel Christian, Seyller Thomas, Parmigiani Fulvio, Grioni Marco, King Phil D. C., Hofmann Philip (2014), Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene, in PHYSICAL REVIEW LETTERS
, 112(25), 257401.
Lin Ping-Hui, Texier Y., Taleb-Ibrahimi A., Le Fevre P., Bertran F., Giannini E., Grioni M., Brouet V. (2013), Nature of the Bad Metallic Behavior of Fe1.06Te Inferred from Its Evolution in the Magnetic State, in PHYSICAL REVIEW LETTERS
, 111(21), 217002.
Ilakovac V., Guarise M., Grioni M., Schmitt T., Zhou K., Braicovich L., Ghiringhelli G., Strocov V. N., Berger H. (2013), Opening of a Peierls gap in BaVS3 probed by V L-3 edge resonant inelastic x-ray scattering, in JOURNAL OF PHYSICS-CONDENSED MATTER
, 25(50), 505602.
Crepaldi A., Tournier-Colletta C., Pivetta M., Autes G., Patthey F., Brune H., Yazyev O. V., Grioni M. (2013), Structural and electronic properties of the Bi/Au(110)-1x4 surface, in PHYSICAL REVIEW B
, 88(19), 195433.
With this proposal we seek the renewal of the grant which supports research on the electronic properties of novel materials and artificial structures at the Laboratory of Electron Spectroscopy (LSE) of the Institute of Condensed Matter Physics (ICMP-EPFL). This grant covers the operation of the in-house laboratory, and the related synchrotron radiation activities. It supports one post-doc and two PhD positions.Research at LSE traditionally addresses the electronic structure of various forms of quantum matter, i.e. of systems where quantum effects, beyond the usual independent particle picture, determine most physical properties. They include novel electronic materials such as topological insulators and Rashba systems, strongly correlated materials such as transition metal or lanthanide compounds, and materials characterized by a strong coupling between the electrons and the lattice. We put special emphasis on the study of materials with reduced dimensionality, which are especially prone to develop instabilities to interesting broken-symmetry phases, e.g. charge or spin-density-waves, or Mott insulating phases. We investigate these systems by high energy spectroscopies, primarily angle-resolved photoelectron spectroscopy (ARPES) with high energy and momentum resolution. The LSE runs a state-of-the-art ARPES spectrometer equipped with cryogenic capabilities and ancillary characterization techniques. We also regularly perform ARPES experiments with synchrotron radiation, which offers notable advantages in terms of energy tunability and polarization control. At synchrotron radiation facilities we also perform experiments with different spectroscopic techniques, namely x-ray absorption spectroscopy (XAS) and resonant inelastic x-ray scattering (RIXS), that provide complementary information on the electronic structure.Our work critically depends on the availability of high-quality crystalline samples. In this respect, the long-standing collaboration with the prominent crystal growth laboratory (H. Berger, A. Magrez) of our Institute, specialized in the synthesis of novel materials, is a very important asset. Some other phases are not easily obtained as single crystals, or only exist as thin films. We have developed the expertise to grow in situ thin film samples and ordered interfaces for spectroscopic investigations. This capability also allows us to study specific physical effects - e.g. the Rashba effect - occurring at surfaces and interfaces. Artificial surface and interface structures also often enable a better control over important parameters such as the lattice spacing, the overlayer-substrate interaction, the band filling, than bulk systems. The Institute of Condensed Matter Physics of the EPFL provides a very favorable environment for our research. We have ongoing collaborations with the experimental groups of H. Brune (STM/STS), L. Forro (transport), H. Ronnow (neutrons, magnetism) and, more recently, of J. Chang (neutrons, ARPES). As a result, a whole range of complementary probes can be applied to the same physical problem. We also take advantage of fruitful collaborations with the theory groups of O. Yazyev (DFT calculations) and F. Mila (strong correlations).Two international collaborations are especially relevant: i) with E. Rotenberg and former LSE member L. Moreschini (ALS, Berkeley) for advanced ARPES synchrotron experiments, including the in-situ growth of thin film samples by pulsed laser deposition; ii) with F. Parmigiani and former LSE member A. Crepaldi (Elettra, Trieste) for time-resolved ARPES experiments.In order to sustain the momentum of our research program, we seek:- the continuation of one post-doc position. This is the only senior position within the group, besides the main applicant. The postdoc plays an essential role in the day-by-day implementation of the research program and supervision of the graduate students. - the continuation of two PhD student positionsInvolved Scientists: Prof. M. Grioni, Dr. Cédric Tournier-Colletta (postdoc), Mr. Simon Moser, Mr. Jens Christian Johannsen;