Temperature dependence of phonon spectra and structural characteristics in multiferroic LuFe2O4 system

doi:10.1002/jrs.2916

CORC > 金属研究所 > 中国科学院金属研究所

	Temperature dependence of phonon spectra and structural characteristics in multiferroic LuFe2O4 system
	Hou, Y.1,2; Yao, Y. P.1,2; Dong, S. N.1,2; Teng, M. L.1,2; Sun, X. F.1,2; Li, X. G.1,2
刊名	JOURNAL OF RAMAN SPECTROSCOPY
	2011-08-01
卷号	42 期号:8 页码:1695-1700
关键词	phonon spectra structure multiferroic
ISSN号	0377-0486
DOI	10.1002/jrs.2916
通讯作者	Li, X. G.(lixg@ustc.edu.cn)
英文摘要	The phonon spectra and structural characteristics of the LuFe2O4 system were investigated using X-ray diffraction as well as Raman and infrared (IR) spectroscopic techniques. Two step-like anomalies of the wavenumbers of the E-g(3) peak in the Raman spectra and the E-u(3) peak in IR spectra, as well as some weak anomalies of the lattice parameters, were found around the ferrimagnetic and ferroelectric transition temperatures. The substitutions of Lu with Yb and Fe with Mn lead to the corresponding wavenumber shifts in the optical spectra, which can be attributed to the changes in the atomic mass and lattice parameters. Furthermore, the Raman intensity was found to be related to the changes in the local structure and electrical conductivity. These results illustrate that the structural fluctuations could effectively influence the phonon modes, and a possible interplay among the structural, magnetic, and charge-ordering properties exists in this multiferroic system. Copyright (C) 2011 John Wiley & Sons, Ltd.
资助项目	National Natural Science Foundation of China ; National Basic Research Program of China[2009CB929502]
WOS研究方向	Spectroscopy
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000294767700014
资助机构	National Natural Science Foundation of China ; National Basic Research Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/118438]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, X. G.
作者单位	1.Univ Sci & Technol China, Dept Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Hou, Y.,Yao, Y. P.,Dong, S. N.,et al. Temperature dependence of phonon spectra and structural characteristics in multiferroic LuFe2O4 system[J]. JOURNAL OF RAMAN SPECTROSCOPY,2011,42(8):1695-1700.
APA	Hou, Y.,Yao, Y. P.,Dong, S. N.,Teng, M. L.,Sun, X. F.,&Li, X. G..(2011).Temperature dependence of phonon spectra and structural characteristics in multiferroic LuFe2O4 system.JOURNAL OF RAMAN SPECTROSCOPY,42(8),1695-1700.
MLA	Hou, Y.,et al."Temperature dependence of phonon spectra and structural characteristics in multiferroic LuFe2O4 system".JOURNAL OF RAMAN SPECTROSCOPY 42.8(2011):1695-1700.