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@ARTICLE{Lastusaari:207197,
      author       = {Lastusaari, M. and Brito, H. F. and Carlson, S. and
                      Hölsä, J. and Laamanen, T. and Rodrigues, L. C. V. and
                      Welter, E.},
      title        = {{V}alences of {D}opants in $\mathrm{{E}u^{2+}}$
                      {P}ersistent {L}uminescence {M}aterials},
      journal      = {Physica scripta},
      volume       = {89},
      number       = {4},
      issn         = {1402-4896},
      address      = {Bristol},
      publisher    = {IoP Publ.},
      reportid     = {PUBDB-2015-01181},
      pages        = {044004},
      year         = {2014},
      note         = {(c) The Royal Swedish Academy of Science.},
      abstract     = {The existence and effect of different rare earth
                      $(R^{2+/3+/IV})$ ions in $SrAl_{2}O_{4}:Eu^{2+},R^{3+}$ and
                      $M_{2}MgSi_{2}O_{7}:Eu^{2+},R^{3+}$ (M: Sr, Ba) persistent
                      luminescence materials was studied with XANES (x-ray
                      absorption near edge structure) measurements at HASYLAB/DESY
                      (Hamburg, Germany) and MAX-lab (Lund, Sweden). The
                      experiments were carried out at 298 K for selected rare
                      earth (co-)dopants $(Eu^{2+}; Ce^{3+}, Nd^{3+}, Sm^{3+},
                      Dy^{3+}$ and $Yb^{3+}$). The co-existence of $Eu^{2+}$ and
                      $Eu^{3+}$ was observed in all materials. The co-dopants were
                      always in the trivalent form.},
      cin          = {FS-DO / FS-PEX},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-DO-20120731 / I:(DE-H253)FS-PEX-20130206},
      pnm          = {DORIS Beamline C (POF2-54G13) / ELISA - European Light
                      Sources Activities - Synchrotrons and Free Electron Lasers
                      (226716)},
      pid          = {G:(DE-H253)POF2-C-20130405 / G:(EU-Grant)226716},
      experiment   = {EXP:(DE-H253)D-C-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000333449400005},
      doi          = {10.1088/0031-8949/89/04/044004},
      url          = {https://bib-pubdb1.desy.de/record/207197},
}