Kopsavilkums
The results of investigation of infrared, Raman and UV-Visible absorption spectra of natural topaz crystals from Ukraine before and after fast neutron irradiation are presented. We assume that the ∼ 620 nm band in topaz crystals is associated with the presence of Cr3+, Fe2+ and Mn2+ impurities. The broad band with maxima at 650 cm-1 observed in Raman spectra for topaz irradiated by fast neutrons may be connected with lattice disorder. Exchange interaction between radiation defect and impurity ions during neutron irradiation leads to appearance of additional absorption band in UV-VIS spectra and bands broadening in infrared and Raman spectra of investigated crystals.
| Oriģinālvaloda | Angļu |
|---|---|
| Raksta numurs | 012051 |
| Žurnāls | IOP Conference Series: Materials Science and Engineering |
| Sējums | 49 |
| Izdevuma numurs | 1 |
| DOIs | |
| Publikācijas statuss | Publicēts - 2013 |
| Pasākums | International Conference on Functional Materials and Nanotechnologies 2013, FM and NT 2013 - Tartu, Igaunija Ilgums: 21 apr. 2013 → 24 apr. 2013 |
Nospiedums
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