Effect of crystal structure on diffusion broadening of Mo¨ssbauer line shape in polycrystalline samples
作者:
M. Celia Dibar‐Ure,
Paul A. Flinn,
期刊:
Applied Physics Letters
(AIP Available online 1973)
卷期:
Volume 23,
issue 11
页码: 587-589
ISSN:0003-6951
年代: 1973
DOI:10.1063/1.1654757
出版商: AIP
数据来源: AIP
摘要:
Experimental observations of diffusional broadening of the Mo¨ssbauer resonance in polycrystalline solids have generally been analyzed on the basis of a liquidlike model which neglects the restriction of atomic jumps to crystallographically determined directions. A calculation based on the theoretical results of Chudley and Elliot for single crystals, averaged over all directions, shows that a substantial correction to the liquidlike result is required. Application of this correction, along with a simple assumption about the correlation factor largely eliminates the existing discrepancies between theory and experiment.
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