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@ARTICLE{Shiratori:56188,
      author       = {Shiratori, Y. and Magrez, A. and Kasezawa, K. and Kato, M.
                      and Röhrig, S. and Peter, F. and Pithan, C. and Waser, R.},
      title        = {{N}oncentrosymmetric phase of submicron {N}a{N}b{O}3
                      crystallites},
      journal      = {Journal of electroceramics},
      volume       = {19},
      issn         = {1385-3449},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {PreJuSER-56188},
      pages        = {273 - 280},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The temperature and pressure characteristics of a
                      noncentrosymmetric crystal modification of NaNbO3 were
                      studied by Raman spectroscopy. A transition towards the
                      bulk-like structure of NaNbO3 occurs in the temperature
                      range from 280 to 360 degrees C. High-pressure Raman
                      spectroscopy revealed successive pressure-induced phase
                      transitions at around 2, 6.5 and 10 GPa. Raman scattering
                      profiles recorded above 7 GPa correspond to those reported
                      for the bulk. The temperature-induced spectral changes were
                      completely reversible between -150 and 450 degrees C. Those
                      induced by pressure were almost reversible from ambient
                      pressure up to 15.9 GPa. Piezoresponse force microscopy
                      demonstrated the occurrence of piezoelectric activity for
                      submicron NaNbO3 crystals with particle size ranging from
                      200 to 400 nm. The noncentrosymmetric crystallographic
                      structure plays a critical role for the enhancement of
                      piezoelectricity.},
      keywords     = {J (WoSType)},
      cin          = {IFF-6 / JARA-FIT},
      ddc          = {620},
      cid          = {I:(DE-Juel1)VDB786 / $I:(DE-82)080009_20140620$},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK414},
      shelfmark    = {Materials Science, Ceramics},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000251795200006},
      doi          = {10.1007/s10832-007-9032-7},
      url          = {https://juser.fz-juelich.de/record/56188},
}