% 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{Schober:201467,
      author       = {Schober, Herbert R. and Buchenau, U. and Gurevich, V. L.},
      title        = {{P}ressure dependence of the boson peak in glasses:
                      {C}orrelated and uncorrelated perturbations},
      journal      = {Physical review / B},
      volume       = {89},
      number       = {1},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-03762},
      pages        = {014204},
      year         = {2014},
      abstract     = {The pressure dependence of the boson peak in glasses within
                      the framework of the extended soft potential model is
                      reconsidered, taking effects at small pressures into
                      account. One of these is the pressure dependence of the
                      elastic constants, changing the interaction between the soft
                      localized modes and thus changing the quasilocalized
                      vibrations (QLVs) of the boson peak. This and other effects
                      require the introduction of additional parameters to
                      describe all the different influences of the pressure in
                      detail. As in the first treatment of the problem, the
                      dominating high-pressure influence remains the creation of
                      pressure forces, which have to be added to the random forces
                      responsible for the boson peak formation. The pressure
                      forces consist of a correlated and an uncorrelated part
                      (correlated with respect to the already existing random
                      forces). Both lead to the P1/3 dependence observed in
                      high-pressure experiments, but the uncorrelated part
                      vanishes at small pressure P. The comparison to experiment
                      is divided into a small pressure part, accessible through
                      low-temperature heat capacity and thermal expansion
                      measurements, and the high-pressure part, mostly Raman
                      scattering measurements of the boson peak under pressure.
                      The results suggest that the latter are dominated by the
                      uncorrelated part of the forces, probably due to
                      pressure-induced relaxations.},
      cin          = {PGI-2 / Neutronenstreuung ; JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-2-20110106 / I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {421 - Frontiers of charge based Electronics (POF2-421)},
      pid          = {G:(DE-HGF)POF2-421},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000332244600001},
      doi          = {10.1103/PhysRevB.89.014204},
      url          = {https://juser.fz-juelich.de/record/201467},
}