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Role of oxygen vacancies in the coloration of 0.65Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.35PbTiO/sub 3/ single crystals
Zhiguo Xia ; Qiang Li ; Ming Cheng
2010-10-12 ; 2010-10-12
关键词Experimental/ binding energy crystal growth from melt crystal structure ferroelectric ceramics lead compounds vacancies (crystal) X-ray diffraction X-ray photoelectron spectra/ oxygen vacancies single crystals growth Bridgman technique yellow colored crystals brown colored crystals PMN-PT(65/35) single crystals coloration X-ray diffraction perovskite structure electric properties X-ray photoelectron spectroscopy XPS electronic structure binding energy valence cations X-ray photoelectron spectra PMN-PbTiO/sub 3// A6170B Interstitials and vacancies A6150L Crystal binding A7960 Photoemission and photoelectron spectra (condensed matter) A6160 Crystal structure of specific inorganic compounds A8110F Crystal growth from melt/ PbMgO3NbO3PbTiO3/ss MgO3/ss NbO3/ss TiO3/ss O3/ss Mg/ss Nb/ss Pb/ss Ti/ss O/ss
中文摘要The coloration and oxygen vacancies in 0.65Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.35PbTiO/sub 3/ (PMN-PT(65/35)) (starting composition) single crystals grown by a so-called modified Bridgman technique were investigated in this paper. Light yellow and dark brown colored crystals were generally observed for the typical as-grown PMN-PT(65/35) single crystals. X-ray diffraction results demonstrated that they were both of pure perovskite structure, but good electric properties were only obtained for the light yellow crystal. X-ray photoelectron spectroscopy (XPS) was used to investigate the electronic structure of its components. The O 1s photoelectron spectra of the dark brown colored crystals located at the higher binding energy side, which meant the existence of the more oxygen vacancies. It accordingly led to the formation of the low valence cations associated with the coloration of the crystals, which is also testified by the obtained X-ray photoelectron spectra of Ti and Nb. c 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
语种英语
出版者Wiley-VCH Verlag GmbH ; Germany
内容类型期刊论文
源URL[http://hdl.handle.net/123456789/81129]  
专题清华大学
推荐引用方式
GB/T 7714
Zhiguo Xia,Qiang Li,Ming Cheng. Role of oxygen vacancies in the coloration of 0.65Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.35PbTiO/sub 3/ single crystals[J],2010, 2010.
APA Zhiguo Xia,Qiang Li,&Ming Cheng.(2010).Role of oxygen vacancies in the coloration of 0.65Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.35PbTiO/sub 3/ single crystals..
MLA Zhiguo Xia,et al."Role of oxygen vacancies in the coloration of 0.65Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.35PbTiO/sub 3/ single crystals".(2010).
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