Rasch, J. C. E., Sheptyakov, D. V., Schefer, J., Keller, L., Böhm, M., Gozzo, F., ...
We report on the crystallographic structure of the layered compound Pb3Mn7O15. Previous analysis based on laboratory X-ray data at room temperature gave contradictory results in terms of the...
Powder diffraction studies on proteins: An overview of data collection approaches (2007)
Margiolaki, I., Wright, J. P., Fitch, A. N., Fox, G. C., Labrador, A., Von Dreele, R. B., ...
Following the seminal work of Von Dreele, high quality powder X-ray diffraction studies on proteins are being established as a valuable complementary technique to single-crystal measurements. Several...
Cs bonding at the Cs/GaAs(110) interface (1996)
Faraci, G., Pennisi, A. R., Gozzo, F., LaRosa, S., Margaritondo, G.
Evaporation of a Cs overlayer in the submonolayer and monolayer regime on a cleaved GaAs(110) surface has been studied by core-level photoemission spectroscopy. The experimental results show three...
Microscopic-Scale Lateral Inhomogeneities of the Gase-Ge Heterojunction Energy Lineup (1995)
Gozzo, F., Berger, H., Collins, I. R., Margaritondo, G., Ng, W., Raychaudhuri, A. K., ...
Hwu, Y., Tung, C. Y., Pieh, J. Y., Lee, S. D., Almeras, P., Gozzo, F., ...
The first photoelectron spectromicroscopy experiments at the new 1.3 GeV ultrabright X-ray source of SRRC have produced interesting results concerning chemical and topographic features in three types...
1st Experimental Tests at the New Synchrotron-Radiation Facility Elettra in Trieste (1994)
Abrami, A., Alfe, D., Antonini, S., Bernardini, M., Bertolo, M., Bocchetta, C. J., ...
Only three weeks after the beginning of commissioning, the new ultrabright synchrotron source ELETTRA was able to deliver the first experimental test data. We briefly discuss these test experiments,...
Spatially Localized Energy Shifts in the Photoemission Spectroscopy of Insulators (1994)
Coluzza, C., Almeida, J., Dellorto, T., Gozzo, F., Almeras, P., Berger, H., ...
Core-level photoemission peaks taken on several insulators with spatial resolution of 30-300 mu m rigidly shift in energy from place to place, most likely because of local charging effects. Such...
McKinley, J. T., Albridge, R. G., Barnes, A. V., Baudat, P. A., Chen, G. C., Coluzza, C., ...
During the past year, the broad tunability (1-10 mum) and megawatt peak intensity made available by the Vanderbilt Free-Electron Laser opened new and productive avenues to semiconductor research....
Free-Electron Laser Spectroscopy of Semiconductors and Interfaces (1994)
McKinley, J. T., Albridge, R. G., Barnes, A. V., Chen, G. C., Davidson, J. L., Languell, M. L., ...
The broad tunability (1-10 mum) and megawatt regime peak intensity available from the Vanderbilt Free-Electron Laser is opening new avenues in semiconductor research. Initial experiments in nonlinear...
Esca Investigation of Snox Films Used as Gas Sensors (1994)
Sanjines, R., Rosenfeld, D., Gozzo, F., Almeras, P., Perez, L., Levy, F., ...
The electronic properties of amorphous and ion-implanted polycrystalline SnO2 films have been studied using x-ray photoemission spectromicroscopy. First, we analysed the degree of oxidation and the...
Electronic-Structure of Anatase Tio2 Oxide (1994)
Sanjines, R., Tang, H., Berger, H., Gozzo, F., Margaritondo, G., Levy, F.
Photoemission spectromicroscopy was used to investigate the electronic structure of TiO2 anatase single crystals and polycrystalline thin films. The stoichiometry and the degree of oxidation of...
High-Resolution Tests of Low-Dimensionality Effects in Photoemission (1993)
Coluzza, C., Berger, H., Almeras, P., Gozzo, F., Margaritondo, G., Indlekofer, G., ...
High-energy-resolution photoemission spectra, taken on three quasi-one-dimensional crystals, TaTe4, NbTe4, and (NbSe4)3I confirm the general phenomenon of the suppression of the photoemission...
Scanning Photoemission Spectromicroscopy of Neurons (1993)
Destasio, G., Perfetti, P., Ng, W., Raychaudhuri, A. K., Liang, S. H., Singh, S., ...
Photoemission spectroscopy now reaches a lateral resolution in the submicrometer range. It is possible, therefore, to perform chemical analysis in the microscopic domain required for life-science...
Microscopic-Scale Lateral Inhomogeneities of the Schottky-Barrier-Formation Process (1993)
Gozzo, F., Marsi, M., Berger, H., Margaritondo, G., Ottolenghi, A., Raychaudhuri, A. K., ...
The interpretation of photoemission-spectromicroscopy studies of Au on GaSe requires a revision of established ideas about this interface, which has long been considered a prototype of Schottky-like...
Lifetime Broadening in Bulk Photoemission Spectroscopy - Reply (1993)
Hwu, Y., Lozzi, L., Larosa, S., Onellion, M., Almeras, P., Gozzo, F., ...
The comment by Starnberg, Brauer, and Nilsson qualitatively identifies the final-state lifetime as the cause of the ''anomalous'' photoemission broadening, but it neglects the linear energy...
Band Bending at Semiconductor Interfaces and Its Effect on Photoemission Line-Shapes (1993)
Margaritondo, G., Gozzo, F., Coluzza, C.
We show that, contrary to intuition and under normal experimental conditions, the band bending at a semiconductor surface or interface does not strongly increase the linewidth of photoemission...
Artificial Band Discontinuities at Gaas Homojunctions (1993)
Marsi, M., Houdre, R., Rudra, A., Ilegems, M., Gozzo, F., Coluzza, C., ...
Valence- and conduction-band offsets can be induced at GaAs(100) polar homojunctions by means of ultrathin Si intralayers. The microscopic interface dipole responsible for the creation of such...
McKinley, J. T., Albridge, R. G., Barnes, A. V., Ueda, A., Tolk, N. H., Coluzza, C., ...
Internal photoemission (IPE) measurements of the conduction band discontinuities at GaAs/amorphous-Ge interfaces have been carried out at the Vanderbilt Free-Electron Laser (FEL). IPE is a simple and...
Sanjines, R., Coluzza, C., Rosenfeld, D., Gozzo, F., Almeras, P., Levy, F., ...
We used the novel experimental technique of photoemission spectromicroscopy to investigate the active area of SnO(x) thin films for gas sensors, deposited by dc sputtering. First, we analyzed the...
Artificial band discontinuities at GaAs homojunctions (1993)
Marsi, M., Houdré, R., Rudra, A., Ilegems, M., Gozzo, F., Coluzza, C., ...
Intrinsic and Extrinsic Charge Neutrality Levels in Semiconductors - an Empirical-Approach (1992)
Gozzo, F., Coluzza, C., Margaritondo, G., Flores, F.
We discuss an empirical method to estimate the positions of intrinsic charge neutrality levels of semiconductors. The method, based on the relation between intrinsic and extrinsic charge neutrality...
Hwu, Y., Lozzi, L., Larosa, S., Onellion, M., Almeras, P., Gozzo, F., ...
We measured at high energy and angular resolution the spectral width of photoemission features near the Fermi energy for Ag(100) and for the nearly-two-dimensional metal 2H-NbSe2. The results do not...
Microscopic Manipulation of Homojunction Band Lineups (1992)
Marsi, M., Larosa, S., Hwu, Y., Gozzo, F., Coluzza, C., Baldereschi, A., ...
We tested the theoretical prediction that the band structures on the opposite sides of a homojunction can be artificially displaced in energy with respect to each other by means of double intralayers...
Early Stages of Schottky-Barrier Formation for Al Deposited on Gaas(110) (1992)
Ortega, J., Garciavidal, F. J., Perez, R., Rincon, R., Flores, F., Coluzza, C., ...
Schottky-barrier formation for Al on GaAs(110) was analyzed theoretically and with the aid of synchrotron-radiation photoemission experiments as a function of the metal coverage. For various...
Artificial GaAs-GaAs band discontinuities (1992)
M. Marsi, R. Houdré, M. Ilegems, F. Gozzo, C. Coluzza, G. Margaritondo
Artificial GaAs-GaAs band discontinuities (1992)
M. Marsi, R. Houdré, M. Ilegems, F. Gozzo, C. Coluzza, G. Margaritondo
Substitutional Reactions in the Surface-Chemistry of Bicasrcuo (1991)
Hwu, Y., Lozzi, L., Larosa, S., Marsi, M., Onellion, M., Berger, H., ...
We identified the nature of the chemical reaction between silver and the cleaved surface of BiCaSrCuO at room temperature as a Bi-Ag reaction with Bi segregation, accompanied by interaction with the...
Bicasrcuo-Semiconductor Interface Formation Processes (1991)
Hwu, Y., Lozzi, L., Larosa, S., Marsi, M., Onellion, M., Berger, H., ...
The deposition of Si and Ge on single-crystal 2212 BiCaSrCuO was studied with synchrotron-radiation photoemission. Contrary to previous results on polycrystalline substrates, clear evidence was found...
Evidence for Surface Chemical-Reactions between Gold and Bicasrcuo (1991)
Hwu, Y., Lozzi, L., Larosa, S., Onellion, M., Berger, H., Gozzo, F., ...
We explored the reactivity of gold on cleaved 2212 BiCaSrCuO by synchrotron-radiation photoemission spectroscopy. We found no evidence for reactivity when the substrate was at room temperature,...
Electronic-Spectrum of the High-Temperature Superconducting State (1991)
Hwu, Y., Lozzi, L., Marsi, M., Larosa, S., Winokur, M., Davis, P., ...
Improved experimental conditions enabled us to increase the signal-to-noise ratio of the photoemission spectra for the superconducting state of Bi2Ca2SrCu2O8, taken with high angular and energy...