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@ARTICLE{Nozaki:188360,
      author       = {Nozaki, Hiroshi and Harada, Masashi and Ohta, Shingo and
                      Watanabe, Isao and Miyake, Yasuhiro and Ikedo, Yutaka and
                      Jalarvo, Niina and Mamontov, Eugene and Sugiyama, Jun},
      title        = {{L}i diffusive behavior of garnet-type oxides studied by
                      muon-spin relaxation and {QENS}},
      journal      = {Solid state ionics},
      volume       = {262},
      issn         = {0167-2738},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-01766},
      pages        = {585 - 588},
      year         = {2014},
      abstract     = {A diffusive behavior of Li+ ion in a garnet-type oxide, Li5
                      + xLa3ZrxNb2 − x012 with x = 0–2, has been investigated
                      by both a positive muon-spin relaxation (μ+SR) and
                      quasi-elastic neutron scattering (QENS) technique using
                      powder samples. The μ+SR results revealed that Li+ ions
                      start to diffuse above ~ 150 K for the whole samples
                      measured. The activation energy of Li diffusion (Ea)
                      estimated from the μ+SR data was in good agreement with Ea
                      obtained by the QENS measurements. However, both Eas were
                      about a half of Ea of ionic conductivity of Li+ (σLi),
                      which was evaluated by AC-impedance measurements on sintered
                      pellets. This indicated the serious effect of grain boundary
                      and/or surface on Ea. Furthermore, since the diffusion
                      coefficient of Li+ estimated by μ+SR is roughly independent
                      of x, the number of mobile Li+ in the garnet lattice was
                      found to be the predominant parameter to determine σLi.},
      cin          = {Neutronenstreuung ; JCNS-1 / JCNS-SNS},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-1-20110106 /
                      I:(DE-Juel1)JCNS-SNS-20110128},
      pnm          = {54G - JCNS (POF2-54G24) / 451 - Soft Matter Composites
                      (POF2-451)},
      pid          = {G:(DE-HGF)POF2-54G24 / G:(DE-HGF)POF2-451},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000338810500128},
      doi          = {10.1016/j.ssi.2013.10.014},
      url          = {https://juser.fz-juelich.de/record/188360},
}