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- W1978136944 abstract "Abstract The cation-vacancy-compensation mechanism of donor doped SrTiO3 single crystals has been investigated on a 2.3at% La doped specimen. Slices with surface smoothness at atomic scale were treated in oxygen at 1380°C for 100h. Thereafter, crystallites of characteristic shape have been found on the surface. Several techniques such as optical microscope, SEM with EDX, AFM and SIMS have been used to describe the reformation of the surface and to analyze the structural composition of the new phases. SrO-rich compositions have been found. The surface seemed to be enriched with Sr and yielded steps which could be interpreted in terms of Ruddlesden Popper-phases ((SrTiO3)n*SrO). These results were compared with similar experiments on donor doped ceramics. Finally, an interpretation with respect to point defect chemistry and the formation of extended defects is proposed." @default.
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- W1978136944 date "1999-03-01" @default.
- W1978136944 modified "2023-10-17" @default.
- W1978136944 title "Restructuring the surface region of donor doped SrTiO<sub>3</sub>single crystals under oxidizing conditions" @default.
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- W1978136944 doi "https://doi.org/10.1080/00150199908210583" @default.
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