Atomic displacement by X-ray excitation in NaCl crystal containing Cu+ ions

S. Emura, H. Maeda, Y. Kubozono

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Abstract

The x-ray excitation spectra around Cu K-edge in sodium chloride crystals containing a small amount of Cu+ ions are measured at 11K 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 XEOL (X-ray Excitation Optical Luminescence) intensities at various temperatures. At low temperature below about 50 K, the micro-clusters or the micro-crystal s 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.

Original languageEnglish
Pages (from-to)C2-585-C2-586
JournalJournal De Physique. IV : JP
Volume7
Issue number2 Part 1
Publication statusPublished - Dec 1 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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