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Phillip T. Sprunger
Associate Professor of Physics

Ph.D., 1993 - University of Pennsylvania

Experimental Condensed Matter

Office: 217-B Nicholson
Telephone: 1254-Office
E-mail:

Research Home Page

RESEARCH INTERESTS

Our research group is focused on understanding interconnecting atomic/morphological, electronic/magnetic and chemical/chemisorption properties of various surface/thin-film/nanophase systems using complementary experimental probes. This includes employing synchrotron-based-VUV photoemission (high-resolution and spin-resolved), -IR spectromicroscopy, -x-ray absorption, along with electron energy-loss spectroscopy, and variable-temperature scanning tunneling microscopy and atomic force microscopy. Systems that are currently being investigated include heteroepitaxially grown metal-on-metal (e.g. Ag/Cu, Co/Ag, Ag nanowires/Cu) and metal-on-semiconductor systems (e.g. Ag/GaAs, Be/Si), intermetallic alloy thin-film and surface systems (e.g. FeAl), simple and complex adsorbate and biological overlayers (amino acid/polymers/SiO2 and Au), polymer photo-induced degradation, and metal on metal-oxide nano-structures (e.g. Ag/Al₂/O3/FeAl). Research emphasis is on correlating electronic/magnetic/photonic properties (hybridization, band-structure electron-phonon, electron-electron interactions) with atomic structure (STM, AFM, LEED, SEXAFS).

CURRENT AND SELECTED PUBLICATIONS

• Kizilkaya, O., Senevirathne, I.C. and Sprunger, P.T., "The electronic structure of ultrathin aluminum oxide film grown on FeAl(110): A photoemission spectroscopy," J. Appl. Phys. 101 (6), 063706 (2007).

• Kizilkaya, O., Hite, D.A., Zhao, W., Sprunger, P.T., Laegsgaard, E., and Besenbacher, F., "Dimensionality in the alloy-de-alloy phase transition of Ag/Cu(110)," Surface Science 596 (1-3), 242-252 (Dec 01 2005).

• Flavell, W.R., Thomas, A.G., Tsoutsou, D., Mallick, A.K., Hollingsworth, J., Patel, S., Seddon, E.A., Stockbauer, R.L., Kurtz, R.L., Sprunger, P.T., Barilo, S.N., Shiryaev, S.V., and Bychkov, G.L., "Resonant photoemission of transition metal perovskites," J. of Electron Spectroscopy and Related Phenomena 144, 777-782 Sp. Iss. SI (Jun 2005).

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