Surface Structure Lab Old Engineering, Rooms 303 and 305 Materials Science and Engineering Stony Brook University Stony Brook, NY 11794-2275 631-632-8508

A facility for the preparation of atomically clean surfaces of metals, semiconductors and alloys; quantitative characterization of surface structure by low-energy electron diffraction (LEED), Auger-electron spectroscopy (AES), and scanning tunneling microscopy (STM); growth of superstructures and/or ultra thin films, and appropriate characterizations--all done in three ultra-high-vacuum (UHV) chambers at Stony Brook. Major equipment: two UHV chambers furnished with LEED, AES, STM, deposition sources and instrumentation for quantitative LEED intensity data collection. Current Research Projects: Studies of epitaxial growth of ultrathin films of metals, especially transition metals, on metallic substrates; studies of multilayer relaxation on metal surfaces, especially rare-earth metal surfaces; studies of reactions and superstructure formation on semiconductor surfaces (especially silicon) with metals. For more experimental detail, check out the experimental chapter of Jim Quinn's doctoral thesis. How about looking at Yuke's STM pictures. Please check out our ARCHIVED IV-DATA and other data from our department. For more information contact Prof. Franco Jona Dale Sondericker working on the 'Old-Lady' Ultra High Vac./LEED/AES System. A small test evaporation-system. The Josephine UHV System. The Old-Lady UHV System. The Low-Energy Electron Gun. LEED pattern of Si{111}rt3xrt3-30-B at 31eV LEED Pictures of Si{111}rt3*rt3-30-B 196eV 210eV 217eV 26eV 78eV 171eV 40eV 104eV 271eV Pictures of Equipment Sample Holder (XYZ, theta, phi, tilt, 100K-1700K) K-lines during an Auger experiment Electronics for LEED/AES LEED patterns of Si{111}7x7 28eV 74eV 86eV I(V) Data for Si(111)rt3*rt3-30-Au 10, 01, 11 Beams 20, 02, 12 Beams 21, 30, 03 Beams 1/3 1/3, 2/3 2/3, 4/3 1/3 Beams 1/3 4/3, 4/3 4/3, 5/3 2/3 Beams 2/3 5/3, 7/3 1/3, 1/3 7/3 Beams I(V) Data for Si(111)rt3*rt3-30-B 10, 01, 11 Beams 20, 02, 12 Beams 21, 30, 03 Beams 1/3 1/3, 2/3 2/3, 1/3 4/3 Beams 4/3 1/3, 5/3 2/3, 2/3 5/3 Beams 4/3 4/3, 1/3 7/3, 7/3 1/3 Beams Schematic Drawings Reconstruction Relaxation Retarding Field Analyzer Integral-Order Pattern Fractional-Order Pattern Si(111)7*7 Diffraction Pattern I(V) Data Acq. System Typical R-factor Contour Plots AES Data Acq. System Typical AES Spectrum Vacuum System Model Structures Truncated Si{111} surface T1, T4, H3, and B5 Si{111}rt3xrt3-30-X Other facilities in this department Other Surface Science Groups Other University Materials Science Programs External Science Organizations and Societies Science/Technology Companies Materials Newsgroups (and other related topics) Please look at the faculty, students, and facilities of the Stony Brook Materials Department.