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@ARTICLE{Grzechnik:807731,
      author       = {Grzechnik, Andrzej and Yeon, Jeongho and Zur Loye,
                      Hans-Conrad and Friese, Karen},
      title        = {{H}igh-pressure behaviour of {C}s$_{2}${V}$_{3}${O}$_{8}$
                      fresnoite},
      journal      = {Journal of solid state chemistry},
      volume       = {238},
      issn         = {0022-4596},
      address      = {Orlando, Fla.},
      publisher    = {Academic Press},
      reportid     = {FZJ-2016-02149},
      pages        = {252 - 258},
      year         = {2016},
      abstract     = {Crystal structure of Cs2V3O8 fresnoite (P4bm, Z=2) has been
                      studied using single-crystal X-ray diffraction in a diamond
                      anvil cell to 8.6 GPa at room temperature. Cs2V3O8 undergoes
                      a reversible first-order phase transition at about 4 GPa
                      associated with anomalies in the pressure dependencies of
                      the lattice parameters and unit-cell volume but without any
                      symmetry change. Both structures consist of layers of
                      corner-sharing V5+O4 tetrahedra and V4+O5 tetragonal
                      pyramids separated by the Cs+ cations located between the
                      layers. At low pressures, the compression has little effect
                      on the polarity of the structure. Above 4 GPa, the
                      pseudosymmetry with respect to the corresponding
                      centrosymmetric space group P4/mbm abruptly increases. The
                      effects of external pressure and of the A+ cation
                      substitution in the vanadate fresnoites A2V3O8 (A+: K+, Rb+,
                      NH4+, Cs+) are discussed},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {144 - Controlling Collective States (POF3-144) / 524 -
                      Controlling Collective States (POF3-524) / 6212 - Quantum
                      Condensed Matter: Magnetism, Superconductivity (POF3-621) /
                      6213 - Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
                      G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
                      G:(DE-HGF)POF3-6G4},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000375635200036},
      doi          = {10.1016/j.jssc.2016.03.041},
      url          = {https://juser.fz-juelich.de/record/807731},
}