% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Kuhn:23008,
      author       = {Kuhn, A. and Wilkening, M. and Robben, L. and Choi, J.-Y.
                      and Tietz, F. and Heitjans, P.},
      title        = {{L}i {I}on {D}ynamics in {A}l-{D}oped {G}arnet-{T}ype
                      {L}i7{L}a3{Z}r2{O}12 {C}rystallizing with {C}ubic
                      {S}ymmetry},
      journal      = {Zeitschrift für Physikalische Chemie},
      volume       = {226},
      issn         = {0942-9352},
      address      = {München},
      publisher    = {Oldenbourg},
      reportid     = {PreJuSER-23008},
      pages        = {525-537},
      year         = {2012},
      note         = {We thank Marc Krey for the ICP-OES analysis. Financial
                      support by the Federal Ministry of Education and Science
                      (BMBF) within the framework of the "Kompetenzverbund Nord"
                      and by the Deutsche Forschungsgemeinschaft (DFG) via the
                      Research Unit 1277 (molife) is gratefully acknowledged. A.
                      K. acknowledges support by the Studienstiftung des deutschen
                      Volkes e.V.},
      abstract     = {Lithium-ion dynamics in the garnet-type solid electrolyte
                      "Li7La3Zr2O12" (LLZ) crystallizing with cubic symmetry was
                      probed by means of variable-temperature Li-7 NMR
                      spectroscopy and ac impedance measurements. Li jump rates of
                      an Al-containing sample follow Arrhenius behavior being
                      characterized by a relatively high activation energy of
                      0.54(3) eV and a pre-exponential factor of 2.2(5) x 10(13)
                      s(-1). The results resemble those which were quite recently
                      obtained for an Al-free LLZ sample crystallizing, however,
                      with tetragonal symmetry. Hence, most likely, the
                      significantly higher Li conductivity previously reported for
                      a cubic LLZ sample cannot be ascribed solely to the slight
                      structural distortions accompanying the change of the
                      crystal symmetry. Here, even Al impurities, acting as
                      stabilizer for the cubic polymorph at room temperature, do
                      not lead to the high ion conductivity reported previously.},
      keywords     = {J (WoSType)},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      shelfmark    = {Chemistry, Physical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000307315500014},
      doi          = {10.1524/zpch.2012.0250},
      url          = {https://juser.fz-juelich.de/record/23008},
}