[Inelastic electron scattering from surfaces]. [Annual] progress report
Abstract
This program is aimed at the quantitative study of surface dynamical processes (vibrational, magnetic excitations) in crystalline slabs, ultrathin-layered materials, and chemisorbed systems on substrates, and of the geometric structure connected to these dynamical excitations. High-resolution electron-energy loss spectroscopy (HREELS) is a powerful probe. Off-specular excitation cross sections are much larger if electron energies are in the LEED range (50-300 eV). The analyses has been used to study surfaces of ordered alloys (NiAl). Ab-initio surface lattice dynamical results were combined with phonon-loss cross sections to achieve a more accurate microscopic description. First-principles phonon eigenvectors and eigenfrequencies were used as inputs to electron-energy-loss multiple scattering cross-section calculations. The combined microscopic approach was used to analyze EELS data of Cu(0001) and Ag(001) at two points. Positron diffraction is discussed as a structural and imaging tool. The relation between geometric structure of a film and its local magnetic properties will be studied in the future, along with other things.
- Publication Date:
- Research Org.:
- Wisconsin Univ., Milwaukee, WI (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 10190864
- Report Number(s):
- DOE/ER/45076-3
ON: DE94001738; BR: ER0000000/KC0202030; TRN: 93:023090
- DOE Contract Number:
- FG02-84ER45076
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; SURFACES; ENERGY-LOSS SPECTROSCOPY; ELECTRONS; INELASTIC SCATTERING; POSITRONS; DIFFRACTION; PROGRESS REPORT; FILMS; 400101; 360104; ACTIVATION, NUCLEAR REACTION, RADIOMETRIC, AND RADIOCHEMICAL PROCEDURES; PHYSICAL PROPERTIES
Citation Formats
. [Inelastic electron scattering from surfaces]. [Annual] progress report. United States: N. p., 1993.
Web. doi:10.2172/10190864.
. [Inelastic electron scattering from surfaces]. [Annual] progress report. United States. https://doi.org/10.2172/10190864
. 1993.
"[Inelastic electron scattering from surfaces]. [Annual] progress report". United States. https://doi.org/10.2172/10190864. https://www.osti.gov/servlets/purl/10190864.
@article{osti_10190864,
title = {[Inelastic electron scattering from surfaces]. [Annual] progress report},
author = {},
abstractNote = {This program is aimed at the quantitative study of surface dynamical processes (vibrational, magnetic excitations) in crystalline slabs, ultrathin-layered materials, and chemisorbed systems on substrates, and of the geometric structure connected to these dynamical excitations. High-resolution electron-energy loss spectroscopy (HREELS) is a powerful probe. Off-specular excitation cross sections are much larger if electron energies are in the LEED range (50-300 eV). The analyses has been used to study surfaces of ordered alloys (NiAl). Ab-initio surface lattice dynamical results were combined with phonon-loss cross sections to achieve a more accurate microscopic description. First-principles phonon eigenvectors and eigenfrequencies were used as inputs to electron-energy-loss multiple scattering cross-section calculations. The combined microscopic approach was used to analyze EELS data of Cu(0001) and Ag(001) at two points. Positron diffraction is discussed as a structural and imaging tool. The relation between geometric structure of a film and its local magnetic properties will be studied in the future, along with other things.},
doi = {10.2172/10190864},
url = {https://www.osti.gov/biblio/10190864},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 1993},
month = {Fri Oct 01 00:00:00 EDT 1993}
}