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@ARTICLE{Heffels:999176,
      author       = {Heffels, Dennis and Burke, Declan and Connolly, Malcolm R.
                      and Schüffelgen, Peter and Grützmacher, Detlev and Moors,
                      Kristof},
      title        = {{R}obust and {F}ragile {M}ajorana {B}ound {S}tates in
                      {P}roximitized {T}opological {I}nsulator {N}anoribbons},
      journal      = {Nanomaterials},
      volume       = {13},
      number       = {4},
      issn         = {2079-4991},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2023-01210},
      pages        = {723 -},
      year         = {2023},
      abstract     = {Topological insulator (TI) nanoribbons with
                      proximity-induced superconductivity are a promising platform
                      for Majorana bound states (MBSs). In this work, we consider
                      a detailed modeling approach for a TI nanoribbon in contact
                      with a superconductor via its top surface, which induces a
                      superconducting gap in its surface-state spectrum. The
                      system displays a rich phase diagram with different numbers
                      of end-localized MBSs as a function of chemical potential
                      and magnetic flux piercing the cross section of the ribbon.
                      These MBSs can be robust or fragile upon consideration of
                      electrostatic disorder. We simulate a tunneling spectroscopy
                      setup to probe the different topological phases of
                      top-proximitized TI nanoribbons. Our simulation results
                      indicate that a top-proximitized TI nanoribbon is ideally
                      suited for realizing fully gapped topological
                      superconductivity, in particular when the Fermi level is
                      pinned near the Dirac point. In this regime, the setup
                      yields a single pair of MBSs, well separated at opposite
                      ends of the proximitized ribbon, which gives rise to a
                      robust quantized zero-bias conductance peak.},
      cin          = {PGI-9 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {5222 - Exploratory Qubits (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5222},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36839091},
      UT           = {WOS:000940576300001},
      doi          = {10.3390/nano13040723},
      url          = {https://juser.fz-juelich.de/record/999176},
}