Site-selective x-ray-excited thermoluminescence and fluorescence of ZrO2 from the local structure of the Zr L3 edge

• Published in: Journal of applied physics Vol. 97; no. 11
• Main Authors: Lai, Lee-Jene, Chu, Tieh-Chi, Hsu, Ya-Chuan, Chen, Yen-Hsien
• Format: Journal Article
• Language: English
• Published: 01.06.2005
• ISSN: 0021-8979; 1089-7550
• DOI: 10.1063/1.1923167

The results presented are an investigation of the local structure of a ZrO2 sample using site-selective x-ray, excited fluorescence, and thermoluminescence methods. The experimental results demonstrate that fluorescence and thermoluminescence yield an x-ray absorption near-edge structure at the Zr L3 edge that depends on the x-ray photon energy associated with the transition from a Zr 2p3∕2 occupied state to a 4d unoccupied state. Although conventional fluorescence measured by x-ray absorption yields the average structure over all Zr, the thermoluminescence yield measured by x-ray absorption provides information on the local structure of Zr only after a long period of phosphorescence. Furthermore, the x-ray absorption of the ZrO2 sample leads to competitive fluorescence and phosphorescence owing to deexcitation of a core hole.