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Full-Text Articles in Physics
The Unoccupied Electronic Structure Characterization Of Hydrothermally Grown Tho2 Single Crystals, T D. Kelly, J C. Petrosky, D Turner, J W. Mcclory, J M. Mann, J W. Kolis, Xin Zhang, Peter A. Dowben
The Unoccupied Electronic Structure Characterization Of Hydrothermally Grown Tho2 Single Crystals, T D. Kelly, J C. Petrosky, D Turner, J W. Mcclory, J M. Mann, J W. Kolis, Xin Zhang, Peter A. Dowben
Peter Dowben Publications
Single crystals of thorium dioxide ThO2, grown by the hydrothermal growth technique, have been investigated by ultraviolet photoemission spectroscopy (UPS), inverse photoemission spectroscopy (IPES), and L3, M3, M4, and M5 X-ray absorption near edge spectroscopy (XANES). The experimental band gap for large single crystals has been determined to be 6 eV to 7 eV, from UPS and IPES, in line with expectations. The combined UPS and IPES, place the Fermi level near the conduction band minimum, making these crystals n-type, with extensive band tailing, suggesting an optical gap in the region …
The Bulk Band Structure And Inner Potential Of Layered In4Se3, Jing Liu, Yaroslav B. Losovyj, Takashi Komesu, Peter A. Dowben, L. Makinistian, E. A. Albinesi, A. G. Petukhov, P. Galiy, Ya. Fiyala
The Bulk Band Structure And Inner Potential Of Layered In4Se3, Jing Liu, Yaroslav B. Losovyj, Takashi Komesu, Peter A. Dowben, L. Makinistian, E. A. Albinesi, A. G. Petukhov, P. Galiy, Ya. Fiyala
Peter Dowben Publications
The layered In4Se3 system does have a bulk band structure (i.e. discernible and significant band dispersion) perpendicular to the cleavage plane. Band widths (the extent of dispersion) of 300 meV or more are observed, for In-p and Se-p weighted bands within the valence region, and is indicative of a bulk band structure. Two-dimensionality of state is clearly not conserved, and there must exist interactions between layers sufficient to support a bulk band structure.
Cobaltocene Adsorption And Dissociation On Cu(1 1 1), Jaewu Choi, Peter A. Dowben
Cobaltocene Adsorption And Dissociation On Cu(1 1 1), Jaewu Choi, Peter A. Dowben
Peter Dowben Publications
Photoemission results indicate that the initial adsorption of cobaltocene on Cu(1 1 1) at 150 K leads to molecular fragmentation, but with subsequent cobaltocene exposures, molecular absorption occurs. The molecularly adsorbed species is either adsorbed with only a fraction of molecules adopting a preferential orientation along the surface normal or adsorbed with the molecular axis away from the surface normal. This adsorption behavior is compared to nickelocene and ferrocene adsorption.