Raman and structural characterization of LuAlO3

Alberto Casu; Pier Carlo Ricci

doi:10.1016/j.jssc.2011.09.007

Raman and structural characterization of LuAlO₃

Alberto Casu^*, Pier Carlo Ricci

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The structural and vibrational properties of lutetium orthoaluminate perovskite (LuAlO₃) were investigated by means of Raman spectroscopy and EXAFS measurements. The analysis of Raman spectra taken in four different polarized configurations along the principal axes at 20 K and room temperature conditions permits to assign the principal vibrational modes in LuAP single crystals and to confirm the belonging to the D_2h¹⁶ space group. EXAFS measurements were performed at room temperature in order to obtain local structural informations on the first and next nearest neighbors around lutetium absorptions sites. Unit cell parameters and bond lengths were determined by the analysis of the EXAFS spectroscopy at the L₃ absorption edge of lutetium. The informations thus gathered on this compound can offer a useful addition in the framework of a full structural characterization of LuAlO₃.

Original language	English (US)
Pages (from-to)	3028-3033
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	184
Issue number	11
DOIs	https://doi.org/10.1016/j.jssc.2011.09.007
State	Published - Nov 2011
Externally published	Yes

Keywords

EXAFS
LuAP
LuAlO
Pervoskite
Raman

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jssc.2011.09.007

Cite this

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title = "Raman and structural characterization of LuAlO3",

abstract = "The structural and vibrational properties of lutetium orthoaluminate perovskite (LuAlO3) were investigated by means of Raman spectroscopy and EXAFS measurements. The analysis of Raman spectra taken in four different polarized configurations along the principal axes at 20 K and room temperature conditions permits to assign the principal vibrational modes in LuAP single crystals and to confirm the belonging to the D2h16 space group. EXAFS measurements were performed at room temperature in order to obtain local structural informations on the first and next nearest neighbors around lutetium absorptions sites. Unit cell parameters and bond lengths were determined by the analysis of the EXAFS spectroscopy at the L3 absorption edge of lutetium. The informations thus gathered on this compound can offer a useful addition in the framework of a full structural characterization of LuAlO3.",

keywords = "EXAFS, LuAP, LuAlO, Pervoskite, Raman",

author = "Alberto Casu and Ricci, {Pier Carlo}",

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language = "English (US)",

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AU - Ricci, Pier Carlo

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AB - The structural and vibrational properties of lutetium orthoaluminate perovskite (LuAlO3) were investigated by means of Raman spectroscopy and EXAFS measurements. The analysis of Raman spectra taken in four different polarized configurations along the principal axes at 20 K and room temperature conditions permits to assign the principal vibrational modes in LuAP single crystals and to confirm the belonging to the D2h16 space group. EXAFS measurements were performed at room temperature in order to obtain local structural informations on the first and next nearest neighbors around lutetium absorptions sites. Unit cell parameters and bond lengths were determined by the analysis of the EXAFS spectroscopy at the L3 absorption edge of lutetium. The informations thus gathered on this compound can offer a useful addition in the framework of a full structural characterization of LuAlO3.

KW - EXAFS

KW - LuAP

KW - LuAlO

KW - Pervoskite

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