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Infrared spectrum and d–d transition of γ-LiAlO2:Cr3+ ceramic

✍ Scribed by Xianlong Wang; Maolu Du; Ge Cui; Jian Ma; Yi Huang

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
162 KB
Volume
406
Category
Article
ISSN
0921-4526

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✦ Synopsis

The g-LiAlO 2 :Cr 3 + ceramics were successfully fabricated using multi-mode cavity microwave furnace, and the sample's infrared absorption spectrum was measured at room temperature. There are six bands in the range 1700-2900 cm À 1 . Using the crystal-field theory and introducing the average covalent factor model, we calculated the d-d transitions of Cr 3 + ions in g-LiAlO 2 and firstly explained these bands in the infrared region. These calculation results are in good agreement with the optical experiment data.

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