Learning Reduced Order Dynamics via Geometric Representations
Imran Nasim, Melanie Weber
SCML 2024
The first momentum-resolved bremsstrahlung (or inverse photoemission) experiments using a tunable light detector in the energy range from 10 to 40 eV are reported. The experimental setup comprises a Pierce-type electron gun, a Seya monochromator, and a position-sensitive channel plate detector. An energy resolution of 0.3 eV at 20 eV has been achieved and the momentum resolution is 0.1 Å-1 The apparatus has been used to determine the energy band dispersion of unoccupied minority spin 3d states in Co. A ferromagnetic exchange splitting of 0.93 ±0.1 eV between the unoccupied spin-down and occupied spin-up states (measured with photoemission) is derived. Another application is the measurement of unoccupied adsorbate levels of CO on Ni( 111). Detecting the polarization of the photons (using the polarization-dependent reflectivity of the monochromator) enables us to identify the symmetry character of the adsorbate orbitals. For a Si( 111)—(7 × 7) surface, empty surface states are found in the band gap. © 1983, American Vacuum Society. All rights reserved.
Imran Nasim, Melanie Weber
SCML 2024
T.N. Morgan
Semiconductor Science and Technology
M.A. Lutz, R.M. Feenstra, et al.
Surface Science
Eloisa Bentivegna
Big Data 2022