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Equal mobility of constituent cations in
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View: Figures


Image of FIG. 1.
FIG. 1.

Electrotransport-induced microstructure changes at the cathode side (a) and at the anode side (b) of La-doped , after passing in total at in air. Note that the grains have grown larger in the cathode side (a) and holes formed in the anode side (b).

Image of FIG. 2.
FIG. 2.

(a) In the vicinity of the cathode upon the cut-and-polished surface of La-doped , after passing at in air. The arrow indicates the direction of an EPMA line scan afterwards. Note a Pt-cathode wire is almost completely buried. (b) The anode penetrating into the oxide with voids left behind, after passing at in air. The arrows 1 and 2 denote the directions of line scan by EPMA afterwards. (c) The morphology of the surface swept by a wire segment of the Pt net. Note the holes inside the grains with their peripheries approximately in parallel with the contours of the corresponding grains themselves, after passing at .

Image of FIG. 3.
FIG. 3.

(a) Distribution of Ba, Ti, O, and La as measured (by the Cameca EPMA) from the anode to the cathode along the line in Fig. 2(a). Note that there is essentially no gradient in composition. (b) X-ray diffraction pattern obtained from the cathode surface of the oxide in Fig. 2(a).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Equal mobility of constituent cations in BaTiO3