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(Color online) Schematic illustrations of (a) the crystal structure and (b) the distorted octahedra, with a bond angle O(3)–Ti–O(3) of in the slab.
(Color online) Temperature dependence of (a) electrical conductivity (the inset shows plots of the variation of carrier concentration and Hall mobility ), (b) Seebeck coefficient , and (c) carrier DOS effective mass for -Sm-doped (SSSTO). The data for -Nb-doped (SSTNO) are taken from Ref. 5 for comparison. The dashed line in (c) indicates the assumed scattering factor , decreasing linearly with temperature from at to at and remaining at above (see Ref. 3).
(Color online) Variation of the O(3)–Ti–O(3) bond angle in the (100) with temperature for SSSTO. The data for nondoped were taken from Ref. 9 for comparison. The dashed lines were added as guides for the eye.
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