Raman shift of RMnO3 (R = La, Pr, Nd, Sm) manganites

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	Raman shift of RMnO3 (R = La, Pr, Nd, Sm) manganites
	W. R. Wang; D. P. Xu; W. H. Su
	2005
发表期刊	Chinese Physics Letters
ISSN	0256-307X
卷号	22 期号:3 页码:705-707
摘要	Raman-active phonons in orthorhombic perovskite-like RMnO3 were studied by measuring Raman spectra in various scattering configurations. The experimental Raman line wave numbers and the expected shapes for the phonon modes were compared to those reported for other perovskite-like compounds with the Pnma structure and to the results of lattice dynamical calculations. The observed Raman lines in the spectra of RMnO3 were assigned to definite atomic motions. The remaining spectral weight can be explained by the presence of dynamic John-Teller distortions that lower the symmetry of the cubic perovskite.
部门归属	jilin univ, dept phys, changchun 130023, peoples r china. ne china inst elect power engn, jilin 132012, peoples r china. harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;xu, dp (reprint author), jilin univ, dept phys, changchun 130023, peoples r china;xu-dapeng@sina.com
关键词	Jahn-teller Transition Neutron-diffraction Scattering Phonons Lamno3 Manganese Ymno3 Spin Ho
URL	查看原文
WOS记录号	WOS:000227711200051
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35095
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. R. Wang,D. P. Xu,W. H. Su. Raman shift of RMnO3 (R = La, Pr, Nd, Sm) manganites[J]. Chinese Physics Letters,2005,22(3):705-707.
APA	W. R. Wang,D. P. Xu,&W. H. Su.(2005).Raman shift of RMnO3 (R = La, Pr, Nd, Sm) manganites.Chinese Physics Letters,22(3),705-707.
MLA	W. R. Wang,et al."Raman shift of RMnO3 (R = La, Pr, Nd, Sm) manganites".Chinese Physics Letters 22.3(2005):705-707.