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Dispersive EXAFS apparatus at Frascati
Review of Scientific Instruments, 1992We report the successful design and test of a dispersive extended x-ray absorption fine structure (EXAFS) apparatus at Frascati. This technique is capable of measuring x-ray absorption spectra in fractions of a second and makes time-resolved structural studies possible.
F d'Acapito +3 more
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Journal of Physics: Condensed Matter, 2001
Extended x-ray absorption fine structure (EXAFS) spectroscopy exploits the quantum interference resulting from the scattering of a photoelectron, generated by the excitation of a core level, by the potential of the surrounding atoms. From the interference pattern it is possible to determine the distance and average distribution of the nearest ...
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Extended x-ray absorption fine structure (EXAFS) spectroscopy exploits the quantum interference resulting from the scattering of a photoelectron, generated by the excitation of a core level, by the potential of the surrounding atoms. From the interference pattern it is possible to determine the distance and average distribution of the nearest ...
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Zeitschrift f�r Physik B Condensed Matter, 1985
We discuss advantages and limitations of X-ray absorption fine structure (EXAFS), X-ray diffraction and anomalous X-ray diffraction as structural tools for ordered and (chemically and structurally) disordered solids.
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We discuss advantages and limitations of X-ray absorption fine structure (EXAFS), X-ray diffraction and anomalous X-ray diffraction as structural tools for ordered and (chemically and structurally) disordered solids.
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2017
Short-range order in amorphous iron-based metal alloys is investigated by the EXAFS-spectroscopy method. According to EXAFS study, the increase of the content of Co atoms in the amorphous metal alloy (AMA) of Fe???Co???B system leads to decrease of the radius of first coordination sphere of the B atom and reduction of the unit-cell volume in a ...
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Short-range order in amorphous iron-based metal alloys is investigated by the EXAFS-spectroscopy method. According to EXAFS study, the increase of the content of Co atoms in the amorphous metal alloy (AMA) of Fe???Co???B system leads to decrease of the radius of first coordination sphere of the B atom and reduction of the unit-cell volume in a ...
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1983
The power of EXAFS spectroscopy for catalysts studies is now well established, and it seems that this technique is particularly well suited since the major qualities of EXAFS find their full use there.
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The power of EXAFS spectroscopy for catalysts studies is now well established, and it seems that this technique is particularly well suited since the major qualities of EXAFS find their full use there.
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EXAFS on Silver Borate Glasses
1984Fast ion transport properties in crystalline and amorphous solids have been widely studied in the last years. In particular, new glasses have been produced, exhibiting a conductivity due to alkali or silver ions much higher than the corresponding crystalline compounds.
Fornasini, Paolo +4 more
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1986
Even though the basic physical explanation of EXAFS was provided by Kronig as being due to modification of the final state of the photoelectron by the crystal (Kronig, 1931) or, in the case of gaseous molecules, by atoms surrounding the excited atom (Kronig, 1932), a great deal of confusion still existed when this field was reviewed by Azaroff in 1963.
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Even though the basic physical explanation of EXAFS was provided by Kronig as being due to modification of the final state of the photoelectron by the crystal (Kronig, 1931) or, in the case of gaseous molecules, by atoms surrounding the excited atom (Kronig, 1932), a great deal of confusion still existed when this field was reviewed by Azaroff in 1963.
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EXAFS in amorphous silicon alloys
Journal of Non-Crystalline Solids, 1987S. MOBILIO, FILIPPONI, Adriano
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