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@ARTICLE{Sinmyo:201516,
      author       = {Sinmyo, R. and Glazyrin, K. and McCammon, C. and Kupenko,
                      I. and Kantor, A. and Potapkin, V. and Chumakov, A. I. and
                      Rüffer, R. and Dubrovinsky, L.},
      title        = {{T}he influence of solid solution on elastic wave velocity
                      determination in ({M}g,{F}e){O} using nuclear inelastic
                      scattering},
      journal      = {Physics of the earth and planetary interiors},
      volume       = {229},
      issn         = {0031-9201},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-03810},
      pages        = {16 - 23},
      year         = {2014},
      abstract     = {Elastic wave velocities of minerals are important for
                      constraining the chemistry, structure and dynamics of the
                      Earth’s mantle based on the comparison between
                      laboratory-based measurements and seismic observations. As
                      the second most abundant phase in the Earth’s lower
                      mantle, (Mg,Fe)O ferropericlase has been the focus of
                      numerous studies measuring the elastic wave velocities using
                      various methods such as Brillouin spectroscopy and
                      ultrasonic measurements. Recently, nuclear inelastic
                      scattering (NIS) has been used to determine elastic wave
                      velocities of iron-bearing phases. However, the elastic wave
                      velocities of ferropericlase obtained using NIS are
                      considerably lower than the velocities obtained by other
                      methods, even at ambient conditions. One possible source of
                      this discrepancy is the local nature of the NIS method. In
                      order to test this hypothesis, we have investigated six
                      ferropericlase samples with various iron contents using NIS.
                      The Debye sound velocities calculated using the conventional
                      method of NIS analysis are consistent with previous results
                      obtained using NIS, yet the values are significantly lower
                      than those obtained using ultrasonics and Brillouin
                      spectroscopy. If the Debye sound velocities are
                      re-calculated based on a mixture of different iron
                      next-neighbour configurations with different compositions,
                      the Debye sound velocities determined by NIS agree well with
                      the results from other methods. Our new model was also
                      successfully applied to high-pressure NIS data taken from
                      the literature. Our results constitute an important step
                      towards a better understanding of how to obtain reliable
                      sound velocities of iron-bearing mantle minerals from NIS
                      measurements.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {550},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {422 - Spin-based and quantum information (POF2-422) / 424 -
                      Exploratory materials and phenomena (POF2-424) / 542 -
                      Neutrons (POF2-542) / 544 - In-house Research with PNI
                      (POF2-544) / 54G - JCNS (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-422 / G:(DE-HGF)POF2-424 /
                      G:(DE-HGF)POF2-542 / G:(DE-HGF)POF2-544 /
                      G:(DE-HGF)POF2-54G24},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000337014900002},
      doi          = {10.1016/j.pepi.2013.12.002},
      url          = {https://juser.fz-juelich.de/record/201516},
}