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@ARTICLE{Rodenbcher:156074,
      author       = {Rodenbücher, Christian and Jauß, Andrea and Havel, Viktor
                      and Waser, Rainer and Szot, Kristof},
      title        = {{F}ast mapping of inhomogeneities in the popular metallic
                      perovskite {N}b:{S}r{T}i{O} 3 by confocal {R}aman
                      microscopy},
      journal      = {Physica status solidi / Rapid research letters},
      volume       = {08},
      number       = {09},
      issn         = {1862-6254},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2014-04957},
      pages        = {781 - 784},
      year         = {2014},
      abstract     = {Confocal 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},
      cin          = {PGI-7},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-7-20110106},
      pnm          = {421 - Frontiers of charge based Electronics (POF2-421)},
      pid          = {G:(DE-HGF)POF2-421},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000342692300006},
      doi          = {10.1002/pssr.201409221},
      url          = {https://juser.fz-juelich.de/record/156074},
}