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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
Corresponding AuthorLi, X. G.(lixg@ustc.edu.cn)
2011-08-01
Source PublicationJOURNAL OF RAMAN SPECTROSCOPY
ISSN0377-0486
Volume42Issue:8Pages:1695-1700
AbstractThe 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.
Keywordphonon spectra structure multiferroic
Funding OrganizationNational Natural Science Foundation of China ; National Basic Research Program of China
DOI10.1002/jrs.2916
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China ; National Basic Research Program of China[2009CB929502]
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000294767700014
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/118439
Collection中国科学院金属研究所
Corresponding AuthorLi, X. G.
Affiliation1.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
Recommended Citation
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.
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