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@ARTICLE{Kooi:888211,
      author       = {Kooi, Bart J. and Wuttig, Matthias},
      title        = {{C}halcogenides by {D}esign: {F}unctionality through
                      {M}etavalent {B}onding and {C}onfinement},
      journal      = {Advanced materials},
      volume       = {32},
      number       = {21},
      issn         = {1521-4095},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2020-04765},
      pages        = {1908302 -},
      year         = {2020},
      abstract     = {A unified picture of different application areas for
                      incipient metals is presented. This unconventional material
                      class includes several main‐group chalcogenides, such as
                      GeTe, PbTe, Sb2Te3, Bi2Se3, AgSbTe2 and Ge2Sb2Te5. These
                      compounds and related materials show a unique portfolio of
                      physical properties. A novel map is discussed, which helps
                      to explain these properties and separates the different
                      fundamental bonding mechanisms (e.g., ionic, metallic, and
                      covalent). The map also provides evidence for an
                      unconventional, new bonding mechanism, coined metavalent
                      bonding (MVB). Incipient metals, employing this bonding
                      mechanism, also show a special bond breaking mechanism. MVB
                      differs considerably from resonant bonding encountered in
                      benzene or graphite. The concept of MVB is employed to
                      explain the unique properties of materials utilizing it.
                      Then, the link is made from fundamental insights to
                      application‐relevant properties, crucial for the use of
                      these materials as thermoelectrics, phase change materials,
                      topological insulators or as active photonic components. The
                      close relationship of the materials' properties and their
                      application potential provides optimization schemes for
                      different applications. Finally, evidence will be presented
                      that for metavalently bonded materials interesting effects
                      arise in reduced dimensions. In particular, the consequences
                      for the crystallization kinetics of thin films and
                      nanoparticles will be discussed in detail.},
      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:32243014},
      UT           = {WOS:000523284500001},
      doi          = {10.1002/adma.201908302},
      url          = {https://juser.fz-juelich.de/record/888211},
}