% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Schmitt:943358,
      author       = {Schmitt, Tobias W and Frohn, Benedikt and Wittl, Wilhelm
                      and Jalil, Abdur R and Schleenvoigt, Michael and Zimmermann,
                      Erik and Schmidt, Anne and Schäpers, Thomas and Cuevas,
                      Juan Carlos and Brinkman, Alexander and Grützmacher, Detlev
                      and Schüffelgen, Peter},
      title        = {{A}nomalous temperature dependence of multiple {A}ndreev
                      reflections in a topological insulator {J}osephson junction},
      journal      = {Superconductor science and technology},
      volume       = {36},
      number       = {2},
      issn         = {0953-2048},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2023-00957},
      pages        = {024002 -},
      year         = {2023},
      abstract     = {As a promising platform for unconventional
                      superconductivity, Josephson junctions (JJs) of tetradymite
                      topological insulators (TIs) and s-wave superconductors have
                      been investigated in recent years. This family of TI
                      materials, however, often suffers from spurious bulk
                      transport, which hampers the observation of the exotic
                      physics of their topological surface states. Thus,
                      disentangling the transport mechanism of bulk and surface
                      contributions in TI JJs is of high importance when
                      investigating proximity induced superconductivity in those
                      crystals. In this work, we add to the insights regarding
                      these contributions by studying the temperature-dependent
                      behaviour of a Bi2Te3-based JJ with transparent interfaces.
                      In electrical transport measurements, we investigate
                      differential conductance spectra of multiple Andreev
                      reflections (MARs) and find a qualitative
                      temperature-dependent change from peak features at low
                      temperatures to dip features at higher ones. The observation
                      of both kind of MAR patterns in a single JJ suggests
                      contributions of diffusive bulk and ballistic surface states
                      and links to a similar finding in the temperature dependence
                      of the critical current. Our work advances the research of
                      induced superconductivity in TIs and offers new avenues to
                      study the induced superconductivity in the topological
                      surface states of these materials.},
      cin          = {PGI-9 / PGI-13},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-13-20210701},
      pnm          = {5222 - Exploratory Qubits (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5222},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000919194900001},
      doi          = {10.1088/1361-6668/aca4fe},
      url          = {https://juser.fz-juelich.de/record/943358},
}