Zobrazeno 1 - 10
of 372
pro vyhledávání: '"Schattke, W"'
Publikováno v:
Phys. Rev. B 101, 195436 (2020)
Geometric configuration and energy of a hydrogen molecule centered between two point-shaped tips of equal charge are calculated with the variational quantum Monte-Carlo (QMC) method without the restriction of the Born-Oppenheimer (BO) approximation.
Externí odkaz:
http://arxiv.org/abs/1910.11619
Laser-assisted photoemission from a solid is considered within a numerically exactly solvable one-dimensional model of a crystal. The effect of the inelastic scattering and of the finite duration of the pump pulse on the photoelectron dynamics is elu
Externí odkaz:
http://arxiv.org/abs/1506.03019
Non-linear effects in photoemission are shown to open a new access to the band structure of unoccupied states in solids, totally different from hitherto used photoemission spectroscopy. Despite its second-order nature, strong resonant transitions occ
Externí odkaz:
http://arxiv.org/abs/0712.2713
Autor:
Strocov, V. N., Krasovskii, E. E., Schattke, W., Barrett, N., Berger, H., Schrupp, D., Claessen, R.
Three-dimensional band structure of unoccupied and occupied states of the prototype layered material TiTe2 is determined focusing on the GammaA line of the Brillouin zone. Dispersions and lifetimes of the unoccupied states, acting as the final states
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604285
A novel Bloch-waves based one-step theory of photoemission is developed within the augmented plane wave formalism. Implications of multi-Bloch-wave structure of photoelectron final states for band mapping are established. Interference between Bloch c
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601647
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 measured for energies up to 50 eV above the Fermi level with k|| varying alo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207607
Quantum Monte Carlo methods have proven to predict atomic and bulk properties of light and non-light elements with high accuracy. Here we report on the first variational quantum Monte Carlo (VMC) calculations for solid surfaces. Taking the boundary c
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009147
Autor:
Kipp, L., Rossnagel, K., Brugmann, J., Solterbeck, C., Strasser, T., Schattke, W., Skibowski, M.
Angle resolved photoemission spectroscopy (ARPES) has been commonly applied to evaluate the shape of Fermi surfaces by employing simple criteria for the determination of the Fermi vector k_F parallel to the surface such as maximum photoemission inten
Externí odkaz:
http://arxiv.org/abs/cond-mat/9905400
A detailed investigation by one-step photoemission calculations of the GaN(0001)-(1x1) surface in comparison with recent experiments is presented in order to clarify its structural properties and electronic structure. The discussion of normal and off
Externí odkaz:
http://arxiv.org/abs/cond-mat/9905245
Autor:
Solterbeck, C., Schattke, W., Zahlmann-Nowitzki, J. -W., Gawlik, K. -U., Kipp, L., Skibowski, M., Fadley, C. S., Van Hove, M. A.
Angle-resolved ultraviolet photoemission spectra are interpreted by combining the energetics and spatial properties of the contributing states. One-step calculations are in excellent agreement with new azimuthal experimental data for GaAs(110). Stron
Externí odkaz:
http://arxiv.org/abs/cond-mat/9708218