% 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”.

@INPROCEEDINGS{Zorn:1023110,
      author       = {Zorn, Reiner},
      title        = {{T}he length scale of the dynamics of glass-forming liquids
                      studied by neutron scattering},
      school       = {ANSTO Sydney},
      reportid     = {FZJ-2024-01680},
      year         = {2022},
      abstract     = {In this talk I will give an overview of what quasielastic
                      and inelastic neutron scattering can contribute to the
                      question of an immanent length scale of the dynamics in
                      glass-forming liquids. In the first part, I will present
                      experiments where the problem is tackled by confining the
                      liquids to a size similar to that of the presumed length
                      scale. It turns out that effects are visible but overlayed
                      by an interfacial deceleration of the dynamics which makes
                      it difficult to interpret the results unambiguously. These
                      effects can be reduced by the use of ‘soft’ confinement
                      where the interface is not rigid. In addition to the effect
                      on the main (α) relaxation, the vibrational spectrum scan
                      be studied in the glassy state. The latter experiments may
                      hint at the origin of the so-called ‘boson peak’. In the
                      second part of the talk, I will present a more recently
                      proposed method to determine the length scale from a
                      combination of quasielastic neutron scattering with dynamic
                      calorimetry. In contrast to the former approach, this works
                      in the bulk but is experimentally challenging because of the
                      seemingly disparate dynamic ranges of the methods. The
                      results indicate that it is necessary to consider
                      temperature fluctuations in the thermodynamical treatment of
                      such systems.},
      organization  = {Lucas Heights, Sydney (Australia)},
      subtyp        = {Invited},
      cin          = {JCNS-1 / IBI-8},
      cid          = {I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)IBI-8-20200312},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4) / 5251 - Multilevel Brain
                      Organization and Variability (POF4-525) / 5241 - Molecular
                      Information Processing in Cellular Systems (POF4-524)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4 /
                      G:(DE-HGF)POF4-5251 / G:(DE-HGF)POF4-5241},
      experiment   = {EXP:(DE-MLZ)J-NSE-20140101 / EXP:(DE-MLZ)SPHERES-20140101},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/1023110},
}