Magnetism and molecular interactions at solid surfaces [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: (5 pages) : digital, PDF file
- Additional Creators
- Stevens Institute of Technology, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Photoemission extended x-ray absorption fine structure, or PEXAFS, has been developed as a new technique for determining the atomic structures of surfaces and adsorbates on surfaces. PEXAFS has several unique advantages over other PEXAFS methods that should make it attractive for use by other surface scientists. We have applied it to studies of the oxidation of technologically important polycrystalline and single crystal materials, aluminum, iron, manganese and manganese compounds, nickel and silicon carbide and of the promotion of oxidation by minute amounts of potassium. In the case of aluminum, for example, PEXAFS made it possible to determine the structural changes associated with the evolution of various oxide phases depending on oxygen exposure and temperature. Even bulk and surface plasmon-loss peaks were used for the first time to obtain PEXAFS. The electron spin polarized version of the technique, called SPEXAFS, has important potential for providing key information about the spatial dependence of magnetic correlations in solids. The original goal of this program was to develop and apply SPEXAFS. Preliminary results were obtained on the antiferromagnets manganese fluoride and manganese oxide but must be confirmed before the effort can be considered successful.
- Report Numbers
- E 1.99:doe/er/45091-6
doe/er/45091-6 - Subject(s)
- Other Subject(s)
- Aluminium
- Surfaces
- Manganese
- Nickel
- Silicon Carbides
- Magnetism
- Absorption Spectroscopy
- Chemical Reactions
- Crystals
- Fine Structure
- Progress Report
- X Radiation
- Carbides
- Carbon Compounds
- Document Types
- Electromagnetic Radiation
- Elements
- Ionizing Radiations
- Metals
- Radiations
- Silicon Compounds
- Spectroscopy
- Transition Elements
- Note
- Published through SciTech Connect.
09/01/1991.
"doe/er/45091-6"
"DE92001952"
Rothberg, G.M. - Funding Information
- FG02-84ER45091
View MARC record | catkey: 14396212