Polarization dependence in the X-ray absorption spectrum of zinc fluoride
| Autor: | A. D. Cox, J. H. Beaumont |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Absorption spectroscopy
Extended X-ray absorption fine structure General Chemical Engineering Analytical chemistry General Physics and Astronomy chemistry.chemical_element Synchrotron radiation Zinc Molecular physics Bond length Condensed Matter::Materials Science Zinc fluoride chemistry.chemical_compound chemistry Condensed Matter::Superconductivity Surface-extended X-ray absorption fine structure Single crystal |
| Zdroj: | Philosophical Magazine B. 42:115-126 |
| ISSN: | 1463-6417 1364-2812 |
| DOI: | 10.1080/01418638008225643 |
| Popis: | X-ray absorption spectra of a single crystal of zinc fluoride have been measured at and above the K-edge of zinc using synchrotron radiation. Observations were made for X-ray electric-field-vector polarizations parallel and perpendicular to the crystal c 0 axis. A quantitative analysis of the EXAFS and a qualitative analysis of the ‘white line’ are shown to be in general agreement with the known crystal structure. EXAFS results show that anisotropies in bond lengths of 0·03 A between the two polarizations may be easily resolved. Atomic EXAFS and white-line anisotropies indicate that the local potential at the zinc absorbing site is not spherically symmetric. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|