Local Co structure in epitaxial CoxTi1-xO2-x anatase -: art. no. 100401

被引:105
作者
Chambers, SA [1 ]
Heald, SM [1 ]
Droubay, T [1 ]
机构
[1] Pacific NW Natl Lab, Fundamental Sci Div, Richland, WA 99352 USA
关键词
D O I
10.1103/PhysRevB.67.100401
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have used Co K-shell near-edge and extended x-ray absorption fine structure to investigate the charge state and local structure surrounding Co in epitaxial Co-doped TiO2 anatase grown on LaAlO3(001). Co is in the +2 formal oxidation state throughout the film, and substitutes for Ti in the lattice, creating a nearby oxygen vacancy in the process. There is no evidence for either elemental Co or CoO in the films.
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页数:4
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