Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Th Fauster"'
Publikováno v:
New Journal of Physics, Vol 16, Iss 2, p 023012 (2014)
In the framework of dielectric theory, the static non-local self-energy of an electron near an ultra-thin polarizable layer has been calculated and applied to study binding energies of image-potential states near free-standing graphene. The correspon
Externí odkaz:
https://doaj.org/article/87b166c7707e4bc9b3cf582715ad39c8
Autor:
Sergey V. Eremeev, Eugene V. Chulkov, Konstantin A. Kokh, Th. Fauster, Daniel Niesner, Oleg E. Tereshchenko, Sebastian Otto
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Journal of Electron Spectroscopy and Related Phenomena. 2014. Vol. 195. P. 258-262
instname
Journal of Electron Spectroscopy and Related Phenomena. 2014. Vol. 195. P. 258-262
The topological insulators Bi2Se3 and Bi2Te2Se have been shown to possess unoccupied topological surface states at the center of the surface Brillouin zone at energies around 1.3 eV above the Fermi level. Using time-resolved two-photon photoemission
Publikováno v:
Applied Physics A. 88:497-503
Image-potential states on several stepped copper surfaces were studied by time, energy, and angle-resolved two-photon photoelectron spectroscopy. For different step densities binding energies and effective masses were determined in the energy-resolve
Autor:
M. Hirschmann, Th. Fauster
Publikováno v:
Applied Physics A. 88:547-554
Excited electrons at surfaces can be scattered by adsorbate atoms or defects, which changes the energy or momentum. Such scattering processes can be studied by energy, time and angle-resolved two-photon photoelectron spectroscopy. In this article the
Publikováno v:
Applied Physics B. 82:571-574
A Ti:sapphire multipass amplifier producing 2.4 mJ, 26 fs pulses at a repetition rate of 1 kHz and 17 W pump power is described. An aperture mask is essential for a good performance of the multipass amplifier. Diffraction by the apertures is identifi
Publikováno v:
Applied Physics A. 81:1651-1655
Monolayers of Co were prepared by pulsed laser deposition (PLD) and thermal deposition (TD) on Si(111) substrates. The surface structure and morphology were studied as a function of annealing temperature with scanning tunneling microscopy and low-ene
Publikováno v:
Applied Physics A. 80:995-1003
The electronic structure and electron dynamics at a Si(100) surface is studied by two-photon photoemission (2PPE). At 90 K the occupied Dup dangling-bond state is located 150±50 meV below the valence-band maximum (VBM) at the center of the surface B
Publikováno v:
Applied Physics A: Materials Science & Processing. 78:161-164
With the increasing resolution and sensitivity of photoelectron spectroscopy, the influence of defects is becoming more and more obvious. Scattering processes induced by adsorbate atoms can be studied by time- and angle-resolved two-photon photoemiss
Autor:
Peter Wahl, M. Roth, Martin Weinelt, Klaus Kern, Lars Diekhöner, Th. Fauster, M. A. Schneider
Publikováno v:
Applied Physics A: Materials Science & Processing. 78:155-159
Scanning tunneling spectroscopy (STS) reveals a distinct asymmetry in the scattering properties of an isolated step for the n=1 image-potential state on Cu(001). The elastic scattering probability for an electron traveling downstairs is determined fr
Publikováno v:
Applied Physics A: Materials Science & Processing. 78:149-153
The dynamical properties of image-potential states on stepped Cu(117) and Cu(118) surfaces were studied by time- and angle-resolved two-photon photoelectron spectroscopy. The interaction with the step-induced potential leads to quasielastic anisotrop