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@ARTICLE{Haas:826175,
      author       = {Haas, Fabian and Zellekens, Patrick and Lepsa, Mihail Ion
                      and Rieger, Torsten and Grützmacher, Detlev and Lüth, Hans
                      and Schäpers, Thomas},
      title        = {{E}lectron {I}nterference in {H}all {E}ffect {M}easurements
                      on {G}a{A}s/{I}n{A}s {C}ore/{S}hell {N}anowires},
      journal      = {Nano letters},
      volume       = {17},
      number       = {1},
      issn         = {1530-6992},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2017-00421},
      pages        = {128 - 135},
      year         = {2017},
      abstract     = {We present low-temperature magnetotransport measurements on
                      GaAs/InAs core/shell nanowires contacted by regular
                      source–drain leads as well as laterally attached Hall
                      contacts, which only touch parts of the nanowire sidewalls.
                      Low-temperature measurements between source and drain
                      contacts show typical phase coherent effects, such as
                      universal conductance fluctuations in a magnetic field
                      aligned perpendicularly to the nanowire axis as well as
                      Aharonov–Bohm-type oscillations in a parallel aligned
                      magnetic field. However, the signal between the Hall
                      contacts shows a Hall voltage buildup, when the magnetic
                      field is turned perpendicular to the nanowire axis while
                      current is driven through the wire using the source–drain
                      contacts. At low temperatures, the phase coherent effects
                      measured between source and drain leads are superimposed on
                      the Hall voltage, which can be explained by nonlocal probing
                      of large segments of the nanowire. In addition, the
                      Aharonov–Bohm-type oscillations are also observed in the
                      magnetoconductance at magnetic fields aligned parallel to
                      the nanowire axis, using the laterally contacted leads. This
                      measurement geometry hereby directly corresponds to
                      classical Aharonov–Bohm experiments using planar quantum
                      rings. In addition, the Hall voltage is used to characterize
                      the nanowires in terms of charge carrier concentration and
                      mobility, using temperature- and gate-dependent measurements
                      as well as measurements in tilted magnetic fields. The
                      GaAs/InAs core/shell nanowire used in combination with
                      laterally attached contacts is therefore the ideal system to
                      three-dimensionally combine quantum ring experiments using
                      the cross-sectional plane and Hall experiments using the
                      axial nanowire plane.},
      cin          = {PGI-9 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {521 - Controlling Electron Charge-Based Phenomena
                      (POF3-521)},
      pid          = {G:(DE-HGF)POF3-521},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000392036600019},
      doi          = {10.1021/acs.nanolett.6b03611},
      url          = {https://juser.fz-juelich.de/record/826175},
}