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000156074 1001_ $$0P:(DE-Juel1)142194$$aRodenbücher, Christian$$b0$$eCorresponding Author$$ufzj
000156074 245__ $$aFast mapping of inhomogeneities in the popular metallic perovskite Nb:SrTiO 3 by confocal Raman microscopy
000156074 260__ $$aWeinheim$$bWiley-VCH$$c2014
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000156074 520__ $$aConfocal Raman microscopy was applied in order to investigate the homogeneity of donor doping in Nb:SrTiO3 single crystals. Measurements of local Raman spectra revealed a systematic relation between the intensity of the Raman signal and the donor content of the crystals. We successfully elaborated a correspondence between the electronic structure and the intensity of the Raman lines using a crystal with macroscopic inhomogeneity as a demonstration sample. By mapping the distribution of the intensity of the Raman signal, we identified a characteristic inhomogeneous structure related to the presence of clusters with sizes of 5 µm to 20 µm, indicating inhomogeneous donor distribution caused by flaws introduced during crystal growth. Hence, we propose confocal Raman microscopy as a convenient technique for investigating the homogeneity and quality of doped perovskite surfaces, which are needed for various technological applications
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000156074 7001_ $$0P:(DE-HGF)0$$aJauß, Andrea$$b1
000156074 7001_ $$0P:(DE-HGF)0$$aHavel, Viktor$$b2
000156074 7001_ $$0P:(DE-HGF)0$$aWaser, Rainer$$b3
000156074 7001_ $$0P:(DE-HGF)0$$aSzot, Kristof$$b4
000156074 773__ $$0PERI:(DE-600)2259465-6$$a10.1002/pssr.201409221$$gVol. 08, no. 09, p. 781 - 784$$n09$$p781 - 784$$tPhysica status solidi / Rapid research letters$$v08$$x1862-6254$$y2014
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