| Autor: |
Chechersky, Vladimir, Nath, Amar |
| Zdroj: |
Hyperfine Interactions; May 1992, Vol. 72 Issue: 1-3 p173-189, 17p |
| Abstrakt: |
We have determined the various parameters of the electric field gradient (EFG) for different Fe-oxygen configurations. This was achieved by analyses of a variety of spectra using a procedure which allows fitting of all spectra of oriented 1-2-3 compounds obtained at different tilt angles β simultaneously, taking into account the degree of texture. The use of a point charge model is invalidated because of the high degree of estimated covalence. The Mössbauer parameters are rationalized. The absence of any observed anisotropy of the mean square displacement of the dopant at the Cu(1) site is rather intriguing. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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