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@ARTICLE{Martinez:1041551,
      author       = {Martinez, Jose and Wichmann, Tobias and Jin, Keda and
                      Samuely, Tomas and Lyu, Zhongkui and Yan, Jiaqiang and
                      Onufriienko, Oleksander and Szabó, Pavol and Tautz, Frank
                      Stefan and Ternes, Markus and Lüpke, Felix},
      title        = {{O}ne-dimensional topological superconductivity in a van
                      der {W}aals heterostructure},
      reportid     = {FZJ-2025-02308},
      year         = {2023},
      abstract     = {One-dimensional (1D) topological superconductivity is a
                      state of matter that is not found in nature. However, it can
                      be realised, for example, by inducing superconductivity into
                      the quantum spin Hall edge state of a two-dimensional
                      topological insulator. Because topological superconductors
                      are proposed to host Majorana zero modes, they have been
                      suggested as a platform for topological quantum computing.
                      Yet, conclusive proof of 1D topological superconductivity
                      has remained elusive. Here, we employ low-temperature
                      scanning tunnelling microscopy to show 1D topological
                      superconductivity in a van der Waals heterostructure by
                      directly probing its superconducting properties, instead of
                      relying on the observation of Majorana zero modes at its
                      boundary. We realise this by placing the two-dimensional
                      topological insulator monolayer WTe2 on the superconductor
                      NbSe2. We find that the superconducting topological edge
                      state is robust against magnetic fields, a hallmark of its
                      triplet pairing. Its topological protection is underpinned
                      by a lateral self-proximity effect, which is resilient
                      against disorder in the monolayer edge. By creating this
                      exotic state in a van der Waals heterostructure, we provide
                      an adaptable platform for the future realization of Majorana
                      bound states. Finally, our results more generally
                      demonstrate the power of Abrikosov vortices as effective
                      experimental probes for superconductivity in
                      nanostructures.},
      cin          = {PGI-3},
      cid          = {I:(DE-Juel1)PGI-3-20110106},
      pnm          = {5213 - Quantum Nanoscience (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5213},
      typ          = {PUB:(DE-HGF)25},
      url          = {https://juser.fz-juelich.de/record/1041551},
}