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@ARTICLE{Trump:859922,
      author       = {Trump, B. A. and Koohpayeh, S. M. and Livi, K. J. T. and
                      Wen, J.-J. and Arpino, K. E. and Ramasse, Q. M. and Brydson,
                      R. and Feygenson, M. and Takeda, H. and Takigawa, M. and
                      Kimura, K. and Nakatsuji, S. and Broholm, C. L. and McQueen,
                      T. M.},
      title        = {{U}niversal geometric frustration in pyrochlores},
      journal      = {Nature Communications},
      volume       = {9},
      number       = {1},
      issn         = {2041-1723},
      address      = {[London]},
      publisher    = {Nature Publishing Group UK},
      reportid     = {FZJ-2019-00738},
      pages        = {2619},
      year         = {2018},
      abstract     = {Materials with the pyrochlore/fluorite structure have
                      diverse technological applications, from magnetism to
                      nuclear waste disposal. Here we report the observation of
                      structural instability present in the pyrochlores A2Zr2O6Oʹ
                      (A = Pr, La) and Yb2Ti2O6Oʹ, that exists despite ideal
                      stoichiometry, ideal cation-ordering, the absence of lone
                      pair effects, and a lack of magnetic order. Though these
                      materials appear to have good long-range order, local
                      structure probes find displacements, of the order of
                      0.01 nm, within the pyrochlore framework. The pattern of
                      displacements of the A2Oʹ sublattice mimics the
                      entropically-driven fluxional motions characteristic of and
                      well-known in the silica mineral β-cristobalite. The
                      universality of such displacements within the pyrochlore
                      structure adds to the known structural diversity and
                      explains the extreme sensitivity to composition found in
                      quantum spin ices and the lack of ferroelectric behavior in
                      pyrochlores.},
      cin          = {ICS-1 / Neutronenstreuung ; JCNS-1},
      ddc          = {500},
      cid          = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
      pid          = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-HGF)POF3-6215},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29976983},
      UT           = {WOS:000437417600006},
      doi          = {10.1038/s41467-018-05033-7},
      url          = {https://juser.fz-juelich.de/record/859922},
}