High pressure Raman investigations of multiferroic BiFeO3

	High pressure Raman investigations of multiferroic BiFeO3
	Yang, Y; Bai LG(白利刚); Jiang S(蒋升); Liu J(刘景); Bai, LG; Zhu, K; Liu, YL; Jiang, S; Liu, J; Chen, J
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	2009
卷号	21 期号:38 页码:385901
通讯作者	[Yang, Y. ; Zhu, K. ; Liu, Y. L.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China ; [Bai, L. G. ; Jiang, S. ; Liu, J.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Chen, J. ; Xing, X. R.] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China
英文摘要	We have reported a Raman scattering investigation of bismuth ferrite (BiFeO3) under high pressure up to 50 GPa. Distinct changes in the Raman spectra show evidence for three pressure-induced structural transitions. The abrupt frequency redshifts of the Raman modes near 300 cm(-1) at around 3 GPa are attributed to the modulation of the FeO6 octahedral tilts. The disappearance of the modes below 250 cm(-1) at 8.6 GPa, together with the enhancement of the two modes in the range of 300-400 cm(-1), indicate the phase transition from the rhombohedral to orthorhombic symmetry. Afterward, the E-3 and E-4 modes disappear at 44.6 GPa, pointing to the occurrence of the orthorhombic-cubic phase transition, which is consistent with the previous postulate that an orthorhombic-cubic transition takes place across the metal-insulator transition at high pressures.
学科主题	Physics
类目[WOS]	Physics, Condensed Matter
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000269363600018
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/241060]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yang, Y,Bai LG,Jiang S,et al. High pressure Raman investigations of multiferroic BiFeO3[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2009,21(38):385901.
APA	Yang, Y.,白利刚.,蒋升.,刘景.,Bai, LG.,...&Xing, XR.(2009).High pressure Raman investigations of multiferroic BiFeO3.JOURNAL OF PHYSICS-CONDENSED MATTER,21(38),385901.
MLA	Yang, Y,et al."High pressure Raman investigations of multiferroic BiFeO3".JOURNAL OF PHYSICS-CONDENSED MATTER 21.38(2009):385901.