| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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|---|---|---|
| Page(s) | C2-585 - C2-586 | |
| DOI | https://doi.org/10.1051/jp4/1997106 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-585-C2-586
DOI: 10.1051/jp4/1997106
1 ISIR, Osaka University, Mihoga-oka 8-1, Ibaraki, Osaka 567, Japan
2 Faculty of Science, Okayama University, Tsushima-naka, Okayama 700, Japan
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-585-C2-586
DOI: 10.1051/jp4/1997106
Atomic Displacement by X-Ray Excitation in NaCl Crystal Containing Cu+ Ions
S. Emura1, H. Maeda2 and Y. Kubozono21 ISIR, Osaka University, Mihoga-oka 8-1, Ibaraki, Osaka 567, Japan
2 Faculty of Science, Okayama University, Tsushima-naka, Okayama 700, Japan
Abstract
The x-ray excitation spectra around Cu tf-edge in sodium chloride crystals containing a small amount of Cu+
ions are measured at 1 IK to 200K. We found Cu+ ion displacements and growths to micro-clusters (micro-crystals) of CuCl2
in sodium chloride crystal by x-ray irradiation. The trace of the.formation is presented by observing the XAFS spectra and
XEGL (X-ray Excitation Optical Luminescence) intensities at various temperatures. At low temperature below about 50 K,
the micro-clusters or the micro-crystals of CuCl2 hardly create. The higher temperature moves the ions faster and further!
and makes more active to form the CuCl2 micro-crystals in bulk. The process of moving of the Cu+ ion is discussed.
© EDP Sciences 1997