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@ARTICLE{Jones:1008446,
      author       = {Jones, Robert O. and Elliott, Stephen R. and Dronskowski,
                      Richard},
      title        = {{T}he {M}yth of “{M}etavalency” in {P}hase‐{C}hange
                      {M}aterials},
      journal      = {Advanced materials},
      volume       = {35},
      number       = {30},
      issn         = {0935-9648},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2023-02346},
      pages        = {2300836},
      year         = {2023},
      abstract     = {Phase-change memory materials (PCMs) have unusual
                      properties and important applications, and recent efforts to
                      find improved materials have focused on their bonding
                      mechanisms. “Metavalent bonding” or “metavalency,”
                      intermediate between “metallic” and “covalent”
                      bonding and comprising single-electron bonds, has been
                      proposed as a fundamentally new mechanism that is relevant
                      both here and for halide perovskite materials. However, it
                      is shown that PCMs, which violate the octet rule, have two
                      types of covalent bond: two-center, two-electron (2c-2e)
                      bonds, and electron-rich, multicenter bonds (3c-4e bonds,
                      hyperbonds) involving lone-pair electrons. The latter have
                      bond orders less than one and are examples of the
                      century-old concept of “partial” bonds.},
      cin          = {PGI-1 / IAS-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406},
      pnm          = {5211 - Topological Matter (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5211},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {37162226},
      UT           = {WOS:000984957200001},
      doi          = {10.1002/adma.202300836},
      url          = {https://juser.fz-juelich.de/record/1008446},
}