@article{4240,
  abstract     = {{Cubic gallium nitride (GaN) films are analyzed with highresolution X-ray diffraction (HRXRD) and Raman spectroscopy. Several cubic GaN layers were grown on 3C-SiC (001) substrate by radio-frequency plasma-assisted molecular beam epitaxy. The layer thickness of the cubic GaN was varied between 75 and 505 nm. The HRXRD analysis reveals a reduction of the full-width at half-maximum (FWHM) of omega scans for growing layer thicknesses, which is caused by a partial compensation of defects. The Raman characterization confirms well-formed c-GaN layers. A more detailed examination of the longitudinal optical mode hints at a correlation of the FWHM of the Raman mode with the dislocation density, which shows the possibility to determine dislocation densities by Ramanspectroscopy on a micrometer scale, which is not possible by HRXRD. Furthermore, this Raman analysis shows that normalized Raman spectra present an alternative way to determine layer thicknesses of thin GaN films.}},
  author       = {{Rüsing, Michael and Wecker, T. and Berth, Gerhard and As, Donat Josef and Zrenner, Artur}},
  issn         = {{0370-1972}},
  journal      = {{physica status solidi (b)}},
  keywords     = {{cubic gallium nitride, dislocation density, HRXRD, Raman spectroscopy}},
  number       = {{4}},
  pages        = {{778--782}},
  publisher    = {{Wiley}},
  title        = {{{Joint Raman spectroscopy and HRXRD investigation of cubic gallium nitride layers grown on 3C-SiC}}},
  doi          = {{10.1002/pssb.201552592}},
  volume       = {{253}},
  year         = {{2016}},
}

@article{4377,
  abstract     = {{Confocal Raman spectroscopy was performed as an archetype imaging method to study the ferroelectric domain structure of periodically poled lithium niobate. More precisely, the linkage out of spatial resolution and spectral information proved itself as very useful. Here a specific modulation of the Raman lines by the local variation of polarity and a non-symmetric measuring-signal across the domain structure were found, which allows for imaging of domain boundaries as well as oppositely orientated domains. The high potential of this method is demonstrated by the visualization of the ferroelectric domain structures based on various phonon modes.}},
  author       = {{Berth, Gerhard and Hahn, Wjatscheslaw and Wiedemeier, Volker and Zrenner, Artur and Sanna, Simone and Schmidt, Wolf Gero}},
  issn         = {{0015-0193}},
  journal      = {{Ferroelectrics}},
  keywords     = {{Raman spectroscopy, ferroelectric domains, LiNbO3, confocal imaging}},
  number       = {{1}},
  pages        = {{44--48}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy}}},
  doi          = {{10.1080/00150193.2011.594774}},
  volume       = {{420}},
  year         = {{2011}},
}