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

doi:10.1002/jrs.2916

IMR OpenIR

	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
通讯作者	Li, X. G.(lixg@ustc.edu.cn)
	2011-08-01
发表期刊	JOURNAL OF RAMAN SPECTROSCOPY
ISSN	0377-0486
卷号	42 期号:8 页码:1695-1700
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.
关键词	phonon spectra structure multiferroic
资助者	National Natural Science Foundation of China ; National Basic Research Program of China
DOI	10.1002/jrs.2916
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; National Basic Research Program of China[2009CB929502]
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000294767700014
出版者	WILEY-BLACKWELL
引用统计	被引频次：13[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/321006/118439
专题	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.