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@ARTICLE{Zhu:280888,
      author       = {Zhu, X. D. and Wicklein, Sebastian and Gunkel, Felix and
                      Xiao, Rui and Dittmann, Regina},
      title        = {{I}n situ optical characterization of {L}a{A}l{O} 3 epitaxy
                      on {S}r{T}i{O} 3 (001)},
      journal      = {epl},
      volume       = {109},
      number       = {3},
      issn         = {0295-5075},
      address      = {Les-Ulis},
      publisher    = {EDP Science65224},
      reportid     = {FZJ-2016-00599},
      pages        = {37006},
      year         = {2015},
      abstract     = {We followed the growth of LaAlO3 (LAO) on TiO2-terminated
                      SrTiO3(001) in situ using a combination of a special
                      monochromatic ellipsometry at photon energy of 1.96 eV and
                      reflection high-energy electron diffraction (RHEED). We find
                      that the phase of the ellipsometric ratio, defined as
                      $\rho\equiv r_{\text{p}}/r_{\text{s}} \equiv \tan\Psi
                      \exp(i\Delta)$ , changes linearly with the LAO film
                      thickness. From the 4th unit cell (uc) up to the 11th unit
                      cell, the slope of change in Δ is different from that for
                      the initial three unit cells and yet there is no abrupt
                      change in Δ when the LAO thickness increases from 3 uc to 4
                      uc. We explore structural and electronic processes in the
                      LaAlO3-SrTiO3system that may be responsible for such an in
                      situ observed optical response.},
      cin          = {PGI-7},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-7-20110106},
      pnm          = {521 - Controlling Electron Charge-Based Phenomena
                      (POF3-521)},
      pid          = {G:(DE-HGF)POF3-521},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000351660100023},
      doi          = {10.1209/0295-5075/109/37006},
      url          = {https://juser.fz-juelich.de/record/280888},
}