Luminescent manifestations of tunneling and ionic processes in alkali feldspars

Autor:	I. Jaek, V. Vasil’chenko, A. Molod’kov
Rok vydání:	2007
Předmět:	Chemical physics Chemistry Relaxation (NMR) Ionic bonding Ionic conductivity Mineralogy Fading Atmospheric temperature range Condensed Matter Physics Luminescence Alkali metal Spectroscopy Quantum tunnelling
Zdroj:	Journal of Applied Spectroscopy. 74:357-363
ISSN:	1573-8647 0021-9037
Popis:	With the aim of determining the reasons for fading in paleodosimeters based on alkali feldspars, we have carried out a broad experimental study of various luminescent characteristics of these materials over a broad temperature range (from nitrogen temperatures to 450°C), relaxation processes at elevated temperatures, and also the effect of different heat treatments on these characteristics. Based on new experimental data on tunneling luminescence, we have critically analyzed the possibility of explaining fading by tunneling processes. In order to consistently explain all the data obtained, including the observed fading, we need to draw on radiation-induced and thermally induced ionic processes. We have carried out a series of direct experiments to measure ionic conductivity in feldspars.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d2e4cf41bdc6e7727737117b5baf71d https://doi.org/10.1007/s10812-007-0058-z Zobrazit plný text záznamu Plný text ve formátu PDF