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@ARTICLE{Herrmann:852521,
      author       = {Herrmann, Markus and Stoffel, R. P. and Dronskowski, R. and
                      Friese, K.},
      title        = {{T}he low-temperature heat capacity of the {S}b 2 {T}e 3−
                      x {S}e x solid solution from experiment and theory},
      journal      = {Journal of physics / Condensed matter},
      volume       = {30},
      number       = {40},
      issn         = {1361-648X},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2018-05449},
      pages        = {405702 -},
      year         = {2018},
      abstract     = {The lattice dynamics of Sb2Te3−x Se x (x  =  0,
                      0.6, 1.2, 1.8, 3) mixed crystals have been studied by a
                      combination of low-temperature heat-capacity measurements
                      between 2–300 K and first-principles calculations. The
                      results from the experimental and theoretical investigations
                      are in excellent agreement. While Sb2Se3 can be considered
                      as a harmonic lattice oscillator in this temperature range,
                      for the isostructural compounds Sb2Te3, Sb2Se0.6Te2.4,
                      Sb2Se1.2Te1.8 and Sb2Se1.8Te1.2 (tetradymite structure type;
                      R m) a small anharmonic contribution to the total heat
                      capacity has to be taken into account at temperatures above
                      250 K. For the compounds which crystallize in the
                      tetradymite structure type the experimental and theoretical
                      data show unambiguously that the exchange of Te by Se leads
                      to an increase of the bonding polarity and consequently to a
                      hardening of the bonding which is reflected in an increase
                      of the Debye temperatures with increasing Se contents. In
                      addition, our studies clearly demonstrate that the mixed
                      crystals in the stability field of the tetradymite structure
                      type are characterized by a strong non-ideal mixing
                      behavior.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {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)},
      pid          = {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},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30168444},
      UT           = {WOS:000444977000002},
      doi          = {10.1088/1361-648X/aade0e},
      url          = {https://juser.fz-juelich.de/record/852521},
}