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@ARTICLE{Piarristeguy:288101,
      author       = {Piarristeguy, A. A. and Micoulaut, M. and Escalier, R. and
                      Jóvári, P. and Kaban, I. and van Eijk, J. and Luckas, J.
                      and Ravindren, S. and Boolchand, P. and Pradel, A.},
      title        = {{S}tructural singularities in
                      $\mathrm{{G}e_{x}{T}e_{100−x}}$ films},
      journal      = {The journal of chemical physics},
      volume       = {143},
      number       = {7},
      issn         = {1089-7690},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {PUBDB-2015-04813},
      pages        = {074502},
      year         = {2015},
      note         = {(c) AIP Publishing LLC. Post referee full text in
                      progress.},
      abstract     = {Structural and calorimetric investigation of
                      Ge$_{x}$Te$_{100−x}$ films over wide range of
                      concentration 10 < x < 50 led to evidence two structural
                      singularities at x ~ 22 at. \% and x ~ 33-35 at. \%.
                      Analysis of bond distribution, bond variability, and glass
                      thermal stability led to conclude to the origin of the first
                      singularity being the flexible/rigid transition proposed in
                      the framework of rigidity model and the origin of the second
                      one being the disappearance of the undercooled region
                      resulting in amorphous materials with statistical
                      distributions of bonds. While the first singularity signs
                      the onset of the Ge–Ge homopolar bonds, the second is
                      related to compositions where enhanced Ge–Ge correlations
                      at intermediate lengthscales (7.7 Å) are observed. These
                      two threshold compositions correspond to recently reported
                      resistance drift threshold compositions, an important
                      support for models pointing the breaking of homopolar
                      Ge–Ge bonds as the main phenomenon behind the ageing of
                      phase change materials.},
      cin          = {DOOR},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {899 - ohne Topic (POF3-899) / FS-Proposal: II-20060203
                      (II-20060203) / FS-Proposal: II-20100137 EC
                      (II-20100137-EC)},
      pid          = {G:(DE-HGF)POF3-899 / G:(DE-H253)II-20060203 /
                      G:(DE-H253)II-20100137-EC},
      experiment   = {EXP:(DE-H253)D-BW5-20150101 / EXP:(DE-H253)D-X1-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000360440400035},
      pubmed       = {pmid:26298140},
      doi          = {10.1063/1.4928504},
      url          = {https://bib-pubdb1.desy.de/record/288101},
}