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@ARTICLE{Gupta:824950,
      author       = {Gupta, S. and Fischer, J. K. H. and Lunkenheimer, P. and
                      Loidl, A. and Novak, E. and Jalarvo, N. and Ohl, M.},
      title        = {{E}ffect of adding nanometre-sized heterogeneities on the
                      structural dynamics and the excess wing of a molecular glass
                      former},
      journal      = {Scientific reports},
      volume       = {6},
      issn         = {2045-2322},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2016-07446},
      pages        = {35034 -},
      year         = {2016},
      abstract     = {We present the relaxation dynamics of glass-forming
                      glycerol mixed with 1.1 nm sized polyhedral oligomeric
                      silsesquioxane (POSS) molecules using dielectric
                      spectroscopy (DS) and two different neutron scattering (NS)
                      techniques. Both, the reorientational dynamics as measured
                      by DS and the density fluctuations detected by NS reveal a
                      broadening of the α relaxation when POSS molecules are
                      added. Moreover, we find a significant slowing down of the
                      α-relaxation time. These effects are in accord with the
                      heterogeneity scenario considered for the dynamics of
                      glasses and supercooled liquids. The addition of POSS also
                      affects the excess wing in glycerol arising from a secondary
                      relaxation process, which seems to exhibit a dramatic
                      increase in relative strength compared to the α
                      relaxation.},
      cin          = {ICS-1 / Neutronenstreuung ; JCNS-1 / JCNS-SNS},
      ddc          = {000},
      cid          = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106 /
                      I:(DE-Juel1)JCNS-SNS-20110128},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
      pid          = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-HGF)POF3-6215},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000385063300001},
      pubmed       = {pmid:27725747},
      doi          = {10.1038/srep35034},
      url          = {https://juser.fz-juelich.de/record/824950},
}