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@ARTICLE{Jones:1029367,
      author       = {Jones, Robert O.},
      title        = {{P}hase change memory materials: {W}hy are alloys of {G}e,
                      {S}b, and {T}e the materials of choice?},
      journal      = {Solid state sciences},
      volume       = {152},
      issn         = {1293-2558},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2024-05076},
      pages        = {107524 -},
      year         = {2024},
      abstract     = {Rewritable optical storage is dominated by alloys of a
                      small number of elements, particularly Ge, Sb, and Te, and
                      Ge/Sb/Te alloys in the composition range
                      (GeTe)1−x(Sb2Te3)x (0 ≤ x ≤ 1) have been the materials
                      of choice: all have metastable rock salt structures that
                      change little over decades at archival temperatures, and all
                      contain vacancies (cavities). The special status arises from
                      the close similarity of the valence orbitals of Ge, Sb, and
                      Te, which arises from the irregular changes in atomic
                      orbitals and properties as the atomic number increases
                      (“secondary periodicity”). The instability of cubic
                      (metallic) Bi to a (semimetallic) rhombohedral structure (H.
                      Jones, 1934) can be adapted to Ge/Sb/Te alloys and explains
                      the crucial metastable (rock salt) structures of these
                      compounds. Vacancies almost always occur next to Te atoms,
                      which form one sublattice of the rock salt structure.},
      cin          = {PGI-1 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)PGI-1-20110106 / $I:(DE-82)080012_20140620$},
      pnm          = {5211 - Topological Matter (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5211},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001219745300001},
      doi          = {10.1016/j.solidstatesciences.2024.107524},
      url          = {https://juser.fz-juelich.de/record/1029367},
}