Extended x-ray absorption fine structure (EXAFS): a novel probe for local structure of glassy solids
The extended x-ray absorption fine structure (EXAFS) is the oscillation in the absorption coefficient extending a few hundred eVs on the high energy side of an x-ray absorption edge. This mode of spectroscopy has recently been realized to be a powerful tool in probing the local atomic structure of all states of matter, particularly with the advent of intense synchrotron radiation. More importantly is the unique ability of EXAFS to probe the structure and dynamics around individual atomic species in a multi-atomic system. In this paper, the physical processes associated with the EXAFS phenomenon will be discussed. Experimental results obtained at the Stanford Synchrotron Radiation Laboratory on some oxide and metallic glasses will be presented. The local structure in these materials are elucidated using a Fourier transform technique.
- Research Organization:
- General Electric Corporate Research and Development, Schenectady, NY
- DOE Contract Number:
- AC02-79ER10382
- OSTI ID:
- 6422029
- Journal Information:
- Proc. Soc. Photo-Opt. Instrum. Eng.; (United States), Journal Name: Proc. Soc. Photo-Opt. Instrum. Eng.; (United States) Vol. 204; ISSN SPIEC
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ABSORPTION SPECTRA
ALKALINE EARTH METALS
BERYLLIUM
BREMSSTRAHLUNG
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
DIMENSIONS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
FINE STRUCTURE
FOURIER ANALYSIS
FUNCTIONS
GERMANIUM CHLORIDES
GERMANIUM COMPOUNDS
GERMANIUM OXIDES
GLASS
HALIDES
HALOGEN COMPOUNDS
IONIZING RADIATIONS
K ABSORPTION
METALS
NICKEL
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SCATTERING
SOLIDS
SPEAR
SPECTRA
SPECTROSCOPY
STORAGE RINGS
SYNCHROTRON RADIATION
TEMPERATURE DEPENDENCE
THICKNESS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WAVE FUNCTIONS
X RADIATION
ZINC CHLORIDES
ZINC COMPOUNDS
ZINC HALIDES