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Origin of the photoemission final-state effects in Bi2Sr2CaCu2O8 by very-low-energy electron diffraction
V. N. Strocov, R. Claessen, P. Blaha
Very-low-energy electron diffraction with a support of full-potential band calculations is used to achieve the energy positions, K// dispersions, lifetimes and Fourier compositions…
Surface characterization and surface electronic structure of organic quasi-one-dimensional charge transfer salts
M. Sing, U. Schwingenschlogl, R. Claessen +2
We have thoroughly characterized the surfaces of the organic charge-transfer salts TTF-TCNQ and (TMTSF)2PF6 which are generally acknowledged as prototypical examples of one-dimensi…
Electronic structure of GaAs1-xNx alloy by soft-X-ray absorption and emission: Origin of the reduced optical efficiency
V. N. Strocov, P. O. Nilsson, A. Augustsson +6
The local electronic structure of N atoms in a diluted GaAs1-xNx (x=3%) alloy, in view of applications in optoelectronics, is determined for the first time using soft-X-ray absorpt…
Unoccupied Band Structure of NbSe2 by Very-Low-Energy Electron Diffraction: Experiment and Theory
E. E. Krasovskii, W. Schattke, V. N. Strocov +1
A combined experimental and theoretical study of very-low-energy electron diffraction at the (0001) surface of 2H-NbSe2 is presented. Electron transmission spectra have been measur…
Band- and k-dependent Self-Energy Effects in the Unoccupied and Occupied Quasiparticle Band Structure of Cu
V. N. Strocov, R. Claessen, F. Aryasetiawan +2
Excited-state self-energy effects in the electronic structure of Cu, a prototype weakly correlated system containing states with different degrees of localization, are investigated…
Photoemission study of polycrystalline Gd_{1-x}Sr_xTiO_{3+delta}: correlation and surface effects
M. Sing, M. Karlsson, D. Schrupp +6
We report photoemission studies of polycrystalline samples of Sr-doped GdTiO_{3+delta}, which undergoes a Mott-Hubbard-like metal-insulator transition at a Ti-concentration of abou…