| Issue |
Eur. Phys. J. AP
Volume 3, Number 2, August 1998
|
|
|---|---|---|
| Page(s) | 183 - 186 | |
| DOI | https://doi.org/10.1051/epjap:1998219 | |
| Published online | 15 August 1998 | |
https://doi.org/10.1051/epjap:1998219
Diffraction peak shift in MgO small crystallites
Université Catholique de Louvain,
avenue Comte de Namur, 13/3, 1 300 Wavre, Belgium
Received:
20
November
1997
Revised:
2
February
1998
Revised:
10
April
1998
Accepted:
21
April
1998
Published online: 15 August 1998
A linear relationship is found between peak position and peak width for the X-ray diffraction peaks of MgO very small crystallites. The sign of the peak shift is explained. The peak shape is asymmetrical, the more asymmetrical the broader it is. The second Heisenberg's uncertainty relation is reinterpreted.
Résumé
L'auteur trouve une relation linéaire entre la position des pics et la largeur des pics de diffraction des rayons X pour de très petites cristallites de MgO. Il explique le signe du déplacement des pics. La forme des pics est asymétrique, d'autant plus asymétrique qu'ils sont plus larges. La seconde relation d'incertitude de Heisenberg est réinterprétée.
PACS: 03.80.+r – General theories of scattering / 32.30.-r – Atomic spectra / 63.22.+m – Phonons in low-dimensional structures and small particles
© EDP Sciences, 1998
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