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@ARTICLE{Portz:821126,
      author       = {Portz, V. and Schnedler, M. and Duchamp, M. and Hsiao,
                      F.-M. and Eisele, H. and Carlin, J.-F. and Butté, R. and
                      Grandjean, N. and Dunin-Borkowski, R. E. and Ebert, Ph.},
      title        = {{S}train and compositional fluctuations in
                      {A}l$_{0.81}${I}n$_{0.19}${N}/{G}a{N} heterostructures},
      journal      = {Applied physics letters},
      volume       = {109},
      number       = {13},
      issn         = {1077-3118},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {FZJ-2016-06369},
      pages        = {132102 -},
      year         = {2016},
      abstract     = {The strain and compositional fluctuations of nearly
                      lattice-matched Al0.81In0.19N/GaN heterostructures are
                      investigated by cross-sectional scanning tunneling
                      microscopy and selected area electron diffraction
                      measurements in scanning electron transmission microscopy.
                      The presence of strain induces height modulations governed
                      by different roughness components at the cleavage surfaces.
                      The surface height modulations are compatible with a
                      relaxation of alternatingly compressive and tensile strained
                      domains, indicating compositional fluctuations. Changes of
                      the a lattice constant are traced to interface misfit edge
                      dislocations. The dislocations induce steps increasing the
                      roughness within the Al0.81In0.19N layers.},
      cin          = {PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {141 - Controlling Electron Charge-Based Phenomena
                      (POF3-141)},
      pid          = {G:(DE-HGF)POF3-141},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000384747900021},
      doi          = {10.1063/1.4963184},
      url          = {https://juser.fz-juelich.de/record/821126},
}