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@ARTICLE{Zellekens:874659,
      author       = {Zellekens, Patrick and Demarina, Nataliya and Janssen,
                      Johanna and Rieger, Torsten and Lepsa, Mihail Ion and Perla,
                      Pujitha and Panaitov, G. and Lüth, Hans and Grützmacher,
                      Detlev and Schäpers, Thomas},
      title        = {{P}hase coherent transport and spin-orbit interaction in
                      {G}a{A}s/{I}n{S}b core/shell nanowires},
      journal      = {Semiconductor science and technology},
      volume       = {35},
      number       = {8},
      issn         = {0268-1242},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2020-01575},
      pages        = {13},
      year         = {2020},
      abstract     = {Low-temperature magnetotransport measurements are performed
                      on GaAs/InSb core-shell nanowires. The nanowires were
                      self-catalyzed grown by molecular beam epitaxy. The
                      conductance measurements as a function of back-gate voltage
                      show an ambipolar behavior comprising an insulating range in
                      between the transition from the p-type to the n-type region.
                      Simulations based on a self-consistent Schrödinger--Poisson
                      solver revealed that the ambipolar characteristics originate
                      from a Fermi level dependent occupation of hole and electron
                      states within the approximately circular quantum well formed
                      in the InSb shell. By applying a perpendicular magnetic
                      field with respect to the nanowire axis, conductance
                      fluctuations were observed, which are used to extract the
                      phase-coherence length. By averaging the magneto-conductance
                      traces at different back-gate voltages, weak
                      antilocalization features are resolved. Regular
                      flux-periodic conductance oscillations are measured when an
                      axial magnetic field is applied. These oscillations are
                      attributed to closed-loop quantized states located in the
                      InSb shell which shift their energetic position periodically
                      with the magnetic flux. Possible reasons for experimentally
                      observed variations in the oscillation patterns are
                      discussed using simulation results.},
      cin          = {PGI-9 / PGI-2 / PGI-10 / IBI-3 / JARA-FIT},
      ddc          = {620},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-2-20110106 /
                      I:(DE-Juel1)PGI-10-20170113 / I:(DE-Juel1)IBI-3-20200312 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {522 - Controlling Spin-Based Phenomena (POF3-522)},
      pid          = {G:(DE-HGF)POF3-522},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1088/1361-6641/ab8396},
      url          = {https://juser.fz-juelich.de/record/874659},
}