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@ARTICLE{Potapkin:810082,
      author       = {Potapkin, V. and Dubrovinsky, L. and Sergueev, I. and
                      Ekholm, M. and Kantor, I. and Bessas, D. and Bykova, E. and
                      Prakapenka, V. and Rüffer, R. and Cerantola, V. and
                      Jönsson, H. J. M. and Olovsson, W. and Mankovsky, S. and
                      Ebert, H. and Abrikosov, I. A. and Hermann, Raphael},
      title        = {{M}agnetic interactions in {N}i{O} at ultrahigh pressure},
      journal      = {Physical review / B},
      volume       = {93},
      number       = {20},
      issn         = {2469-9950},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2016-02959},
      pages        = {201110},
      year         = {2016},
      abstract     = {Magnetic properties of NiO have been studied in the
                      multimegabar pressure range by nuclear forward scattering of
                      synchrotron radiation using the 67.4 keV Mössbauer
                      transition of Ni61. The observed magnetic hyperfine
                      splitting confirms the antiferromagnetic state of NiO up to
                      280 GPa, the highest pressure where magnetism has been
                      observed so far, in any material. Remarkably, the hyperfine
                      field increases from 8.47 T at ambient pressure to ∼24 T
                      at the highest pressure, ruling out the possibility of a
                      magnetic collapse. A joint x-ray diffraction and extended
                      x-ray-absorption fine structure investigation reveals that
                      NiO remains in a distorted sodium chloride structure in the
                      entire studied pressure range. Ab initio calculations
                      support the experimental observations, and further indicate
                      a complete absence of Mott transition in NiO up to at least
                      280 GPa.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {530},
      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:000376638400001},
      doi          = {10.1103/PhysRevB.93.201110},
      url          = {https://juser.fz-juelich.de/record/810082},
}