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@ARTICLE{Lpke:917158,
      author       = {Lüpke, Felix and Waters, Dacen and Pham, Anh D. and Yan,
                      Jiaqiang and Mandrus, David G. and Ganesh, Panchapakesan and
                      Hunt, Benjamin M.},
      title        = {{Q}uantum {S}pin {H}all {E}dge {S}tates and {I}nterlayer
                      {C}oupling in {T}wisted {B}ilayer {WT}e 2},
      journal      = {Nano letters},
      volume       = {22},
      number       = {14},
      issn         = {1530-6984},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2023-00390},
      pages        = {5674 - 5680},
      year         = {2022},
      abstract     = {The quantum spin Hall (QSH) effect, characterized by
                      topologically protected spin-polarized edge states, was
                      recently demonstrated in monolayers of the transition metal
                      dichalcogenide (TMD) WTe2. However, the robustness of this
                      topological protection remains largely unexplored in van der
                      Waals heterostructures containing one or more layers of a
                      QSH insulator. In this work, we use scanning tunneling
                      microscopy and spectroscopy (STM/STS) to explore the
                      topological nature of twisted bilayer (tBL) WTe2. At the tBL
                      edges, we observe the characteristic spectroscopic
                      signatures of the QSH edge states. For small twist angles, a
                      rectangular moiré pattern develops, which results in local
                      modifications of the band structure. Using first-principles
                      calculations, we quantify the interactions in tBL WTe2 and
                      its topological edge states as a function of interlayer
                      distance and conclude that it is possible to engineer the
                      topology of WTe2 bilayers via the twist angle as well as
                      interlayer interactions.},
      cin          = {PGI-3},
      ddc          = {660},
      cid          = {I:(DE-Juel1)PGI-3-20110106},
      pnm          = {5213 - Quantum Nanoscience (POF4-521) / DFG project
                      443416235 - 1D topologische Supraleitung und Majorana
                      Zustände in van der Waals Heterostrukturen charakterisiert
                      durch Rastersondenmikroskopie},
      pid          = {G:(DE-HGF)POF4-5213 / G:(GEPRIS)443416235},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {35759639},
      UT           = {WOS:000821851000001},
      doi          = {10.1021/acs.nanolett.2c00432},
      url          = {https://juser.fz-juelich.de/record/917158},
}