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@INPROCEEDINGS{Basaric:1022110,
      author       = {Basaric, Farah and Faustmann, Anton and Behner, Gerrit and
                      Pawlis, Alexander and Krause, Christoph and Lüth, Hans and
                      Grützmacher, Detlev and Schäpers, Thomas},
      title        = {{A}haronov-{B}ohm-type oscillations in phase-pure
                      core/shell {G}a{A}s/{I}n{A}snanowires},
      reportid     = {FZJ-2024-01231},
      year         = {2023},
      note         = {DFG Germany’s Excellence Strategy—Cluster of Excellence
                      Matter and Light for Quantum Computing (ML4Q) EXC
                      2004/1—390534769},
      abstract     = {Epitaxially grown core-shell GaAs/InAs nanowires provide
                      heterostructure with transport properties governed by the
                      angular momentum states in the InAs shell formed around
                      highresistance GaAs core . In contrast to polymorphic
                      GaAs/InAs nanowires, phasepure core/shell nanowires,
                      comprising only of wurtzite crystal structure along the
                      nanowire axis, offer uniformity in their electrical,
                      mechanical and optical properties due to the absenceof a
                      crystallographic disorder. Magnetotransport measurements
                      were carried out at variable temperatures and for different
                      gate voltages, under an axially applied magnetic field.
                      Pronounced Aharonov-Bohm-type oscillations in the
                      conductance could be observed for such phase-pure nanowire
                      type. In measurements at different gate voltages,
                      significantly higher oscillation amplitudes are observed in
                      comparison to the corresponding measurements on polymorphic
                      core/shell nanowires. Measurements at different temperatures
                      show robustness of these oscillations against high
                      temperatures as a result of reduced disorder, where finally,
                      strong indications of a quasi-ballistic transport regime
                      could be recognized. Combining phase–pure core/shell
                      GaAs/InAs nanowires with an in-situ depositedsuperconducting
                      layer, a gate-controlled Josephson junction could be
                      fabricated. In such system, coupling between Andreev bound
                      states with orbital angular momentumstates under an axially
                      applied magnetic field results in orbital Josephson
                      interference. So far, obtained measurement results on
                      GaAs/InAs nanowires indicate a strong effect of
                      disorderreduction in a case of phase-pure nanowire type,
                      manifested in their superior transport properties (as
                      compared to the polymorphic type), thus presenting a
                      promising platform forfuture investigation of orbital
                      Josephson interference.},
      month         = {Jun},
      date          = {2023-06-12},
      organization  = {Bound States, Budapest (Hungary), 12
                       Jun 2023 - 15 Jun 2023},
      subtyp        = {After Call},
      cin          = {PGI-9 / PGI-10},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-10-20170113},
      pnm          = {5222 - Exploratory Qubits (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5222},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/1022110},
}