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@ARTICLE{Portz:826806,
      author       = {Portz, V. and Schnedler, M. and Lymperakis, L. and
                      Neugebauer, J. and Eisele, H. and Carlin, J.-F. and Butté,
                      R. and Grandjean, N. and Dunin-Borkowski, Rafal and Ebert,
                      Ph.},
      title        = {{F}ermi-level pinning and intrinsic surface states of
                      {A}l$_{1−x}${I}n$_{x}${N}(101¯0) surfaces},
      journal      = {Applied physics letters},
      volume       = {110},
      number       = {2},
      issn         = {1077-3118},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {FZJ-2017-01023},
      pages        = {022104 -},
      year         = {2017},
      abstract     = {The electronic structure of Al1−xInxN(101⎯⎯0)
                      surfaces is investigated by cross-sectional scanning
                      tunneling spectroscopy and density functional theory
                      calculations. The surface exhibits empty Al and/or
                      In-derived dangling bond states, which are calculated to be
                      within the fundamental bulk band gap for In compositions
                      smaller than $60\%.$ The energy of the lowest empty
                      In-derived surface state is extracted from the tunnel
                      spectra for lattice-matched Al1–xInxN with In compositions
                      of x = 0.19 and x = 0.20 to be
                      EC − 1.82 ± 0.41 and
                      EC − 1.80 ± 0.56 eV, respectively, in good
                      agreement with the calculated energies. Under growth
                      conditions, the Fermi level is hence pinned (unpinned) for
                      In compositions smaller (larger) than $60\%.$ The analysis
                      of the tunnel spectra suggests an electron affinity of
                      ∼3.5 eV for nonpolar lattice-matched Al1–xInxN
                      cleavage surfaces, which is large compared to linearly
                      interpolated values of polar AlN and InN (0001) surfaces.},
      cin          = {PGI-5 / ER-C-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {141 - Controlling Electron Charge-Based Phenomena
                      (POF3-141)},
      pid          = {G:(DE-HGF)POF3-141},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000392835300034},
      doi          = {10.1063/1.4973765},
      url          = {https://juser.fz-juelich.de/record/826806},
}