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@ARTICLE{Rmann:843817,
      author       = {Rüßmann, P. and Weber, A. P. and Glott, F. and Xu, N. and
                      Fanciulli, M. and Muff, S. and Magrez, A. and Bugnon, P. and
                      Berger, H. and Bode, M. and Dil, J. H. and Blügel, S. and
                      Mavropoulos, P. and Sessi, P.},
      title        = {{U}niversal scattering response across the type-{II} {W}eyl
                      semimetal phase diagram},
      journal      = {Physical review / B},
      volume       = {97},
      number       = {7},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2018-01357},
      pages        = {075106},
      year         = {2018},
      abstract     = {The discovery of Weyl semimetals represents a significant
                      advance in topological band theory. They paradigmatically
                      enlarged the classification of topological materials to
                      gapless systems while simultaneously providing experimental
                      evidence for the long-sought Weyl fermions. Beyond
                      fundamental relevance, their high mobility, strong
                      magnetoresistance, and the possible existence of even more
                      exotic effects, such as the chiral anomaly, make Weyl
                      semimetals a promising platform to develop radically new
                      technology. Fully exploiting their potential requires going
                      beyond the mere identification of materials and calls for a
                      detailed characterization of their functional response,
                      which is severely complicated by the coexistence of surface-
                      and bulk-derived topologically protected quasiparticles,
                      i.e., Fermi arcs and Weyl points, respectively. Here, we
                      focus on the type-II Weyl semimetal class in which we find a
                      stoichiometry-dependent phase transition from a trivial to a
                      nontrivial regime. By exploring the two extreme cases of the
                      phase diagram, we demonstrate the existence of a universal
                      response of both surface and bulk states to perturbations.
                      We show that quasiparticle interference patterns originate
                      from scattering events among surface arcs. Analysis reveals
                      that topologically nontrivial contributions are strongly
                      suppressed by spin texture. We also show that scattering at
                      localized impurities can generate defect-induced
                      quasiparticles sitting close to the Weyl point energy. These
                      give rise to strong peaks in the local density of states,
                      which lift the Weyl node, significantly altering the
                      pristine low-energy spectrum. Remarkably, by comparing the
                      WTe2 and the MoTe2 cases we found that scattering response
                      and topological transition are not directly linked.
                      Visualizing the existence of a universal microscopic
                      response to scattering has important consequences for
                      understanding the unusual transport properties of this class
                      of materials. Overall, our observations provide a unifying
                      picture of the type-II Weyl phase diagram.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142) / 143 -
                      Controlling Configuration-Based Phenomena (POF3-143) /
                      Scattering of topologically protected states off defects in
                      topological insulators $(jara0078_20131101)$},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143 /
                      $G:(DE-Juel1)jara0078_20131101$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000424088600001},
      doi          = {10.1103/PhysRevB.97.075106},
      url          = {https://juser.fz-juelich.de/record/843817},
}