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@ARTICLE{Behner:1014690,
      author       = {Behner, Gerrit and Jalil, Abdur Rehman and Heffels, Dennis
                      and Kölzer, Jonas and Moors, Kristof and Mertens, Jonas and
                      Zimmermann, Erik and Mussler, Gregor and Schüffelgen, Peter
                      and Lüth, Hans and Grützmacher, Detlev and Schäpers,
                      Thomas},
      title        = {{A}haronov-{B}ohm {I}nterference and {P}hase-{C}oherent
                      {S}urface-{S}tate {T}ransport in {T}opological {I}nsulator
                      {R}ings},
      journal      = {Nano letters},
      volume       = {23},
      number       = {14},
      issn         = {1530-6984},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2023-03395},
      pages        = {6347 - 6353},
      year         = {2023},
      abstract     = {We present low-temperature magnetotransport measurements on
                      selectively grown Sb2Te3-based topological insulator ring
                      structures. These devices display clear Aharonov-Bohm
                      oscillations in the conductance originating from
                      phase-coherent transport around the ring. The temperature
                      dependence of the oscillation amplitude indicates that the
                      Aharonov-Bohm oscillations originate from ballistic
                      transport along the ring arms. We attribute these
                      oscillations to the topological surface states. Further
                      insight into the phase coherence is gained by comparing with
                      similar Aharonov-Bohm-type oscillations in topological
                      insulator nanoribbons exposed to an axial magnetic field.
                      Here, quasi-ballistic phase-coherent transport is confirmed
                      for closed-loop topological surface states in the transverse
                      direction enclosing the nanoribbon. In contrast, the
                      appearance of universal conductance fluctuations indicates
                      phase-coherent transport in the diffusive regime, which is
                      attributed to bulk carrier transport. Thus, it appears that
                      even in the presence of diffusive p-type charge carriers in
                      Aharonov-Bohm ring structures, phase-coherent
                      quasi-ballistic transport of topological surface states is
                      maintained over long distances.},
      cin          = {PGI-9},
      ddc          = {660},
      cid          = {I:(DE-Juel1)PGI-9-20110106},
      pnm          = {5222 - Exploratory Qubits (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5222},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {37399545},
      UT           = {WOS:001021466800001},
      doi          = {10.1021/acs.nanolett.3c00905},
      url          = {https://juser.fz-juelich.de/record/1014690},
}