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Oxygen vacancy ordering in heavily rare-earth-doped ceria
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10.1063/1.2369881
/content/aip/journal/apl/89/17/10.1063/1.2369881
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/17/10.1063/1.2369881

Figures

Image of FIG. 1.
FIG. 1.

(a) Ce and Y maps of Y-doped ceria and SAED patterns of ceria doped with (b) Sm, (c) Dy, (d) Y, and (e) Yb.

Image of FIG. 2.
FIG. 2.

Oxygen -edge of pure ceria and RE-doped ceria samples. Inset shows the energy windows with a width of for calculating the integral intensities of peaks B and C.

Image of FIG. 3.
FIG. 3.

Schematic of constructing a unit cell of a -type structure out of eight unit cells of fluorite structure by removing 25% oxygen ions and then introducing ionic shifts . Corresponding [110] electron diffraction patterns are shown. To clearly present the arrangement of oxygen ions in a -type structure, the shifted cations in (c) are hidden.

Image of FIG. 4.
FIG. 4.

Values of as a function of the difference in lattice parameters of -type and fluorite-structured ceria .

Tables

Generic image for table
Table I.

Comparison between the value of and the ionic conductivity (in air) of 15 and RE-doped ceria ( and ).

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/content/aip/journal/apl/89/17/10.1063/1.2369881
2006-10-26
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Oxygen vacancy ordering in heavily rare-earth-doped ceria
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/17/10.1063/1.2369881
10.1063/1.2369881
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