Direct Subangstrom Measurement of Surfaces of Oxide Particles

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	Direct Subangstrom Measurement of Surfaces of Oxide Particles
	R. Yu; L. H. Hu; Z. Y. Cheng; Y. D. Li; H. Q. Ye; J. Zhu
	2010
发表期刊	Physical Review Letters
ISSN	0031-9007
卷号	105 期号:22
摘要	Using aberration-corrected transmission electron microscopy combined with first-principles calculations, we show that the surface structure of Co(3)O(4), a typical complex oxide, can be directly imaged and quantitatively analyzed at the subangstrom scale. The atomic positions of both light oxygen and heavier cobalt within the surface layers have been measured to an accuracy of several picometers. The surface electronic structure analysis suggests a polarity compensation model based on the electronic polarizability of surface ions.
部门归属	[yu, r.; cheng, z. y.; zhu, j.] tsinghua univ, dept mat sci & engn, beijing natl ctr electron microscopy, beijing 100084, peoples r china. [yu, r.; zhu, j.] tsinghua univ, dept mat sci & engn, adv mat lab, beijing 100084, peoples r china. [yu, r.; li, y. d.; zhu, j.] tsinghua univ, dept mat sci & engn, state key lab new ceram & fine proc, beijing 100084, peoples r china. [hu, l. h.; li, y. d.] tsinghua univ, dept chem, beijing 100084, peoples r china. [ye, h. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;yu, r (reprint author), tsinghua univ, dept mat sci & engn, beijing natl ctr electron microscopy, beijing 100084, peoples r china;ryu@tsinghua.edu.cn
关键词	Atomic-resolution Chemistry Density Oxygen Co3o4
URL	查看原文
WOS记录号	WOS:000284532900017
引用统计	被引频次：63[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/321006/31664
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. Yu,L. H. Hu,Z. Y. Cheng,et al. Direct Subangstrom Measurement of Surfaces of Oxide Particles[J]. Physical Review Letters,2010,105(22).
APA	R. Yu,L. H. Hu,Z. Y. Cheng,Y. D. Li,H. Q. Ye,&J. Zhu.(2010).Direct Subangstrom Measurement of Surfaces of Oxide Particles.Physical Review Letters,105(22).
MLA	R. Yu,et al."Direct Subangstrom Measurement of Surfaces of Oxide Particles".Physical Review Letters 105.22(2010).