Lutetium yttrium orthoaluminate perovskite [Lu0.7Y0.3AlO3 (LuYAP)] crystals show great potential as fast response and highefficiency scintillators as an alternative to LuAlO3 (LuAP) crystals. This paper aims to offer a complete analysis of the vibrational modes of the LuYAP crystal by means of polarized Raman spectroscopy in the temperature range of 20-290 K and confronting the experimental results with numerical methods inorder to characterize the crystal structure.Furthermore, an interpretation of the data in terms of vibrating molecular structures is suggested and the results are successfully confronted with the vibrational modes of similar perovskite crystals.
Structural characterization of Lu₀․₇Y₀․₃AlO₃ single crystal by Raman spectroscopy [Structural characterization of Lu0.7Y0.3AlO3 single crystal by Raman spectroscopy] / A. Casu, P.C. Ricci, A. Anedda. - In: JOURNAL OF RAMAN SPECTROSCOPY. - ISSN 0377-0486. - 40:9(2009 Sep), pp. 1224-1228. [10.1002/jrs.2266]
Structural characterization of Lu₀․₇Y₀․₃AlO₃ single crystal by Raman spectroscopy [Structural characterization of Lu0.7Y0.3AlO3 single crystal by Raman spectroscopy]
A. CasuPrimo
;
2009
Abstract
Lutetium yttrium orthoaluminate perovskite [Lu0.7Y0.3AlO3 (LuYAP)] crystals show great potential as fast response and highefficiency scintillators as an alternative to LuAlO3 (LuAP) crystals. This paper aims to offer a complete analysis of the vibrational modes of the LuYAP crystal by means of polarized Raman spectroscopy in the temperature range of 20-290 K and confronting the experimental results with numerical methods inorder to characterize the crystal structure.Furthermore, an interpretation of the data in terms of vibrating molecular structures is suggested and the results are successfully confronted with the vibrational modes of similar perovskite crystals.
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