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@ARTICLE{Freter:891579,
      author       = {Freter, Lars and Wang, Yuhan and Schnedler, M. and Carlin,
                      J.-F. and Butté, R. and Grandjean, N. and Eisele, H. and
                      Dunin-Borkowski, R. E. and Ebert, Ph.},
      title        = {{I}nterplay of intrinsic and extrinsic states in pinning
                      and passivation of m -plane facets of {G}a{N} n - p - n
                      junctions},
      journal      = {Journal of applied physics},
      volume       = {128},
      number       = {18},
      issn         = {0021-8979},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {FZJ-2021-01604},
      pages        = {185701 -},
      year         = {2020},
      abstract     = {Intrinsic and extrinsic pinning and passivation of m-plane
                      cleavage facets of GaN n-p-n junctions were investigated by
                      cross-sectional scanning tunneling microscopy and
                      spectroscopy. On freshly cleaved and clean p-type
                      GaN(101⎯⎯⎯0) surfaces, the Fermi level is found to be
                      extrinsically pinned by defect states, whereas n-type
                      surfaces are intrinsically pinned by the empty surface
                      state. For both types of doping, air exposure reduces the
                      density of pinning states and shifts the pinning levels
                      toward the band edges. These effects are assigned to water
                      adsorption and dissociation, passivating intrinsic and
                      extrinsic gap states. The revealed delicate interplay of
                      intrinsic and extrinsic surface states at GaN(101⎯⎯⎯0)
                      surfaces is a critical factor for realizing flatband
                      conditions at sidewall facets of nanowires exhibiting
                      complex doping structures.},
      cin          = {ER-C-1 / PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-1-20170209 / I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000590858100001},
      doi          = {10.1063/5.0020652},
      url          = {https://juser.fz-juelich.de/record/891579},
}