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@ARTICLE{Klobes:283031,
      author       = {Klobes, B. and Arinicheva, Y. and Neumeier, S. and Simon,
                      R. E. and Jafari, A. and Bosbach, D. and Hermann, R. P.},
      title        = {{Q}uadrupole splitting and {E}u partial lattice dynamics in
                      europium orthophosphate {E}u{PO} 4},
      journal      = {Hyperfine interactions},
      volume       = {237},
      number       = {1},
      issn         = {1572-9540},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2016-01713},
      pages        = {31},
      year         = {2016},
      abstract     = {Hyperfine interactions in europium orthophosphate EuPO4
                      were investigated using 151Eu Mössbauer spectroscopy from 6
                      to 300 K. The value of the quadrupole splitting and the
                      asymmetry parameter were refined and further substantiated
                      by nuclear forward scattering data obtained at room
                      temperature. The temperature dependence of the relative
                      absorption was modeled with an Eu specific Debye temperature
                      of 221(1) K. Eu partial lattice dynamics were probed by
                      means of nuclear inelastic scattering and the mean force
                      constant, the Lamb-Mössbauer factor, the internal energy,
                      the vibrational entropy, the average phonon group velocity
                      were calculated using the extracted density of phonon
                      states. In general, Eu specific vibrations are characterized
                      by rather small phonon energies and contribute strongly to
                      the total entropy of the system. Although there is no
                      classical Debye like behavior at low vibrational energies,
                      the average phonon group velocity can be reasonably
                      approximated using a linear fit.},
      cin          = {IEK-6 / JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-6-20101013 / I:(DE-Juel1)JCNS-2-20110106 /
                      I:(DE-Juel1)PGI-4-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {161 - Nuclear Waste Management (POF3-161) / 144 -
                      Controlling Collective States (POF3-144) / 524 - Controlling
                      Collective States (POF3-524) / 6212 - Quantum Condensed
                      Matter: Magnetism, Superconductivity (POF3-621) / 6213 -
                      Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623) / HITEC - Helmholtz
                      Interdisciplinary Doctoral Training in Energy and Climate
                      Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-161 / G:(DE-HGF)POF3-144 /
                      G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
                      G:(DE-HGF)POF3-6213 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000372730100004},
      doi          = {10.1007/s10751-016-1211-y},
      url          = {https://juser.fz-juelich.de/record/283031},
}