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@ARTICLE{Zhachuk:837578,
      author       = {Zhachuk, R. and Coutinho, J. and Dolbak, A. and Cherepanov,
                      V. and Voigtländer, Bert},
      title        = {{S}i(111) strained layers on {G}e(111): {E}vidence for c (
                      2 × 4 ) domains141},
      journal      = {Physical review / B},
      volume       = {96},
      number       = {8},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2017-06466},
      pages        = {085401},
      year         = {2017},
      abstract     = {The tensile-strained Si(111) layers grown on top of Ge(111)
                      substrates are studied by combining scanning tunneling
                      microscopy, low-energy electron diffraction, and
                      first-principles calculations. It is shown that the layers
                      exhibit c(2×4) domains, which are separated by domain walls
                      along ⟨¯110⟩ directions. A model structure for the
                      c(2×4) domains is proposed, which shows low formation
                      energy and good agreement with the experimental data. The
                      results of our calculations suggest that Ge atoms are likely
                      to replace Si atoms with dangling bonds on the surface
                      (rest-atoms and adatoms), thus significantly lowering the
                      surface energy and inducing the formation of domain walls.
                      The experiments and calculations demonstrate that when
                      surface strain changes from compressive to tensile, the
                      (111) reconstruction converts from dimer-adatom-stacking
                      fault-based to adatom-based structures.},
      cin          = {PGI-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-3-20110106},
      pnm          = {141 - Controlling Electron Charge-Based Phenomena
                      (POF3-141)},
      pid          = {G:(DE-HGF)POF3-141},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000406673500006},
      doi          = {10.1103/PhysRevB.96.085401},
      url          = {https://juser.fz-juelich.de/record/837578},
}