% 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{Mchel:17637,
      author       = {Möchel, A. and Sergueev, I. and Wille, H.-C. and Juranyi,
                      F. and Schober, H. and Schweika, W. and Brown, S. R. and
                      Kauzlarich, S. M. and Hermann, R.},
      title        = {{L}attice dynamics in the thermoelectric {Z}intl compound
                      {Y}b14{M}n{S}b11},
      journal      = {Physical review / B},
      volume       = {84},
      number       = {18},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-17637},
      pages        = {184303},
      year         = {2011},
      note         = {We thank D. Bessas for his support during the NIS
                      measurements, Dr. M. M. Koza for helpful discussions, and
                      Professor Gary J. Long and Professor F. Grandjean for their
                      assistance with preliminary work on these Zintl phases. The
                      European Synchrotron Radiation Facility (ESRF), Grenoble,
                      France; the Advanced Photon Source (APS), Argonne National
                      Laboratory, Argonne, USA; the Swiss spallation neutron
                      source SINQ, Paul Scherrer Institute, Villigen, Switzerland;
                      and the Institut Laue-Langevin (ILL), Grenoble, France, are
                      acknowledged for synchrotron and neutron beam time at the
                      nuclear resonance station ID18 and ID22N, the 6-ID-D
                      high-energy station, the cold-neutron time-of-flight
                      spectrometer FOCUS, and the IN6 spectrometer, respectively.
                      R. H. acknowledges support from the Helmholtz-University
                      Young Investigator Group "Lattices Dynamics in Emerging
                      Functional Materials."},
      abstract     = {The density of phonon states in the thermoelectric material
                      Yb14MnSb11 has been studied first by inelastic neutron
                      scattering and second in an element-specific way by nuclear
                      inelastic x-ray scattering. The low sound velocity of
                      1880(50) m/s as obtained from the density of phonon states
                      can be identified as an important reason for the low heat
                      transport in this system. The high melting temperature of
                      Yb14MnSb11 contrasts with the low energy of all phonons (<25
                      meV) and relates to an unusual lack of softening of phonon
                      modes with temperature, when comparing the phonon density of
                      states observed at ambient temperatures and at 1200 K. We
                      have also measured the density of phonon states of the
                      related Eu14MnSb11 compound and of the thermoelectric Zintl
                      phase Zn4Sb3 in order to compare with related thermodynamic
                      properties of Yb14MnSb11 and to elucidate the different
                      mechanisms of the heat conductivity reduction in Zintl
                      phases.},
      keywords     = {J (WoSType)},
      cin          = {PGI-4 / JCNS-2 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien /
                      Großgeräte für die Forschung mit Photonen, Neutronen und
                      Ionen (PNI)},
      pid          = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000297101700007},
      doi          = {10.1103/PhysRevB.84.184303},
      url          = {https://juser.fz-juelich.de/record/17637},
}