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@ARTICLE{Huittinen:826675,
      author       = {Huittinen, N. and Arinicheva, Y. and Kowalski, Piotr and
                      Vinograd, Victor and Neumeier, Stefan and Bosbach, D.},
      title        = {{P}robing structural homogeneity of
                      {L}a$_{1-x}${G}d$_{x}${PO}$_{4}$ monazite-type solid
                      solutions by combined spectroscopic and computational
                      studies},
      journal      = {Journal of nuclear materials},
      volume       = {486},
      issn         = {0022-3115},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-00893},
      pages        = {148 - 157},
      year         = {2017},
      abstract     = {Here we study the homogeneity of Eu3+-doped La1-xGdxPO4 (x
                      = 0, 0.11, 0.33, 0.55, 0.75, 0.92, 1) monazite-type solid
                      solutions by a combination of Raman and time-resolved laser
                      fluorescence spectroscopies (TRLFS) with complementary
                      quasi-random structure-based atomistic modeling studies. For
                      the intermediate La0.45Gd0.55PO4 composition we detected a
                      significant broadening of the Raman bands corresponding to
                      the lattice vibrations of the LnO9 polyhedron, indicating
                      much stronger distortion of the lanthanide cation site than
                      the PO4 tetrahedron. A distortion of the crystal lattice
                      around the dopant site was also confirmed in our TRLFS
                      measurements of Eu3+ doped samples, where both the half
                      width (FWHM) of the excitation peaks and the 7F2/7F1 ratio
                      derived from the emission spectra increase for intermediate
                      solid-solution compositions. The observed variation in FWHM
                      correlates well with the simulated distribution of Eu···O
                      bond distances within the investigated monazites. The
                      combined results imply that homogenous Eu3+-doped
                      La1-xGdxPO4 monazite-type solid solutions are formed over
                      the entire composition range, which is of importance in the
                      context of using these ceramics for immobilization of
                      radionuclides.},
      cin          = {IEK-6 / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-6-20101013 / $I:(DE-82)080012_20140620$},
      pnm          = {161 - Nuclear Waste Management (POF3-161) / BMBF-02NUK021A
                      - Verbundprojekt Conditioning: Grundlegende Untersuchungen
                      zur Immobilisierung langlebiger Radionuklide mittels Einbau
                      in endlagerrelevante Keramiken; Teilprojekt A
                      (BMBF-02NUK021A) / Investigation of the new materials for
                      safe management of high level nuclear waste.
                      $(jiek61_20131101)$ / Investigation of the new materials for
                      safe management of high level nuclear waste.
                      $(jara0038_20121101)$ / Towards controlled QCD transport
                      coefficients $(jara0039_20121101)$},
      pid          = {G:(DE-HGF)POF3-161 / G:(DE-Juel1)BMBF-02NUK021A /
                      $G:(DE-Juel1)jiek61_20131101$ /
                      $G:(DE-Juel1)jara0038_20121101$ /
                      $G:(DE-Juel1)jara0039_20121101$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000397373600017},
      doi          = {10.1016/j.jnucmat.2017.01.024},
      url          = {https://juser.fz-juelich.de/record/826675},
}