Share Email Print
cover

Proceedings Paper

Raman shift of rare earth cobalt oxides
Author(s): Weiran Wang; Yan Zhao; Xueying Han
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

RCoO3(R=La, Ce, Pr, Nd, Sm, Eu, Gd and Dy) perovskites prepared using the solid-state reaction method were examined by Raman spectroscopy. The Raman active Phonons in the RCoO3 perovskites crystallized in cubic symmetry for RCoO3 (R=La, Ce, Pr and Nd) and orthorhombic symmetry for RCoO3 (R=Sm, Eu, Gd, and Dy) were reported. The Raman spectra of RCoO3 perovskites were strongly dependent on the ionic radius of the rare earth elements, and the frequency shift of the most intense modes of the orthorhombic samples were correlated with some structural parameters such as Co-O bond distances, ionic radius of the rare earth elements and John-Teller distortion. It is clear that Raman spectroscopy has the advantage of being very sensitive to structure distortion and oxygen motion.

Paper Details

Date Published: 12 October 2010
PDF: 6 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76563X (12 October 2010); doi: 10.1117/12.865213
Show Author Affiliations
Weiran Wang, Northeast Dianli Univ. (China)
Yan Zhao, Northeast Dianli Univ. (China)
Xueying Han, Northeast Dianli Univ. (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

© SPIE. Terms of Use
Back to Top