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@ARTICLE{Posseik:153643,
      author       = {Posseik, Francois and Ksari, Y. and Lin, Y. P. and Porte,
                      L. and Themlin, J.-M.},
      title        = {{I}nteraction of {C}$_{60}$ with clean and hydrogenated
                      {S}i{C}-(3×3) probed through the unoccupied electronic
                      states},
      journal      = {Physical review / B},
      volume       = {88},
      number       = {12},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2014-03148},
      pages        = {125421},
      year         = {2013},
      abstract     = {The effect of hydrogenation on the conduction bands of the
                      Si-rich 6H-SiC(0001)-(3×3) reconstruction is studied using
                      inverse photoemission spectroscopy in order to distinguish
                      surface from bulk states. These results are exploited for
                      the comparative study of the interaction of C60 adsorbed on
                      (3×3) and on hydrogen-terminated (3×3). For the latter, as
                      in the case of hydrogen-terminated Si, C60 is electronically
                      decoupled from the substrate. Upon annealing a C60 thick
                      film deposited on hydrogenated (3×3) up to 670 K, there is
                      a hint for a possible hydrogen transfer to the C60
                      molecules. The initially physisorbed molecules then adopt
                      covalent bonding with Si, forming the contact layer. Part of
                      the substrate is already found uncovered at this
                      temperature. By further annealing up to 860 K all H atoms
                      have desorbed. Finally, at 1100 K the remaining covalently
                      bound C60 have desorbed. Unexpectedly, the structural
                      damages caused by H and C60 deposition and by the successive
                      annealing steps do not prevent a final restoration of the
                      initial (3×3) reconstruction at about 1100 K.},
      cin          = {PGI-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-3-20110106},
      pnm          = {424 - Exploratory materials and phenomena (POF2-424)},
      pid          = {G:(DE-HGF)POF2-424},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000324486400005},
      doi          = {10.1103/PhysRevB.88.125421},
      url          = {https://juser.fz-juelich.de/record/153643},
}