Pressure-induced amorphization in orthorhombic Ta2O5: An intrinsic character of crystal

	Pressure-induced amorphization in orthorhombic Ta2O5: An intrinsic character of crystal
	Li, QJ; Zhang, HF; Cheng, BY; Liu, R; Liu, B; Liu, J; Chen, ZQ; Zou, B; Cui, T; Liu, BB;刘景
刊名	JOURNAL OF APPLIED PHYSICS
	2014
卷号	115 期号:19 页码:193512
英文摘要	The phase transition of orthorhombic Ta2O5 was investigated by in situ synchrotron X-ray diffraction and Raman spectroscopy. The orthorhombic phase transforms into an amorphous form completely at 24.7 GPa. A bulk modulus B-0 = 139 (9) GPa for the orthorhombic Ta2O5 is derived from the P-V data. We suggest that the pressure-induced amorphization (PIA) in Ta2O5 can be attributed to the unstability of the a axis under high pressure leads to the connections of polyhedral breaking down and even triggers disorder of the whole crystal frame. These results demonstrate that the PIA is an intrinsic character of Ta2O5 which depends on its orthorhombic crystal structure rather than nanosize effects. This study provides a new kind of bulk material for investigating PIA in metal oxides. (C) 2014 AIP Publishing LLC.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000336920200024
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225063]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Li, QJ,Zhang, HF,Cheng, BY,et al. Pressure-induced amorphization in orthorhombic Ta2O5: An intrinsic character of crystal[J]. JOURNAL OF APPLIED PHYSICS,2014,115(19):193512.
APA	Li, QJ.,Zhang, HF.,Cheng, BY.,Liu, R.,Liu, B.,...&Liu, BB；刘景.(2014).Pressure-induced amorphization in orthorhombic Ta2O5: An intrinsic character of crystal.JOURNAL OF APPLIED PHYSICS,115(19),193512.
MLA	Li, QJ,et al."Pressure-induced amorphization in orthorhombic Ta2O5: An intrinsic character of crystal".JOURNAL OF APPLIED PHYSICS 115.19(2014):193512.