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@ARTICLE{Zhu:867953,
      author       = {Zhu, Min and Cojocaru-Mirédin, Oana and Mio, Antonio M.
                      and Keutgen, Jens and Küpers, Michael and Yu, Yuan and Cho,
                      Ju-Young and Dronskowski, Richard and Wuttig, Matthias},
      title        = {{U}nique {B}ond {B}reaking in {C}rystalline {P}hase
                      {C}hange {M}aterials and the {Q}uest for {M}etavalent
                      {B}onding},
      journal      = {Advanced materials},
      volume       = {30},
      number       = {18},
      issn         = {0935-9648},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2019-06546},
      pages        = {1706735 -},
      year         = {2018},
      abstract     = {Laser‐assisted field evaporation is studied in a large
                      number of compounds, including amorphous and crystalline
                      phase change materials employing atom probe tomography. This
                      study reveals significant differences in field evaporation
                      between amorphous and crystalline phase change materials.
                      High probabilities for multiple events with more than a
                      single ion detected per laser pulse are only found for
                      crystalline phase change materials. The specifics of this
                      unusual field evaporation are unlike any other mechanism
                      shown previously to lead to high probabilities of multiple
                      events. On the contrary, amorphous phase change materials as
                      well as other covalently bonded compounds and metals possess
                      much lower probabilities for multiple events. Hence,
                      laser‐assisted field evaporation in amorphous and
                      crystalline phase change materials reveals striking
                      differences in bond rupture. This is indicative for
                      pronounced differences in bonding. These findings imply that
                      the bonding mechanism in crystalline phase change materials
                      differs substantially from conventional bonding mechanisms
                      such as metallic, ionic, and covalent bonding. Instead, the
                      data reported here confirm a recently developed conjecture,
                      namely that metavalent bonding is a novel bonding mechanism
                      besides those mentioned previously.},
      cin          = {PGI-10},
      ddc          = {660},
      cid          = {I:(DE-Juel1)PGI-10-20170113},
      pnm          = {521 - Controlling Electron Charge-Based Phenomena
                      (POF3-521)},
      pid          = {G:(DE-HGF)POF3-521},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29572962},
      UT           = {WOS:000431615100017},
      doi          = {10.1002/adma.201706735},
      url          = {https://juser.fz-juelich.de/record/867953},
}