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@ARTICLE{Kern:1044387,
      author       = {Kern, Christian S. and Yang, Xiaosheng and Zamborlini,
                      Giovanni and Mearini, Simone and Jugovac, Matteo and Feyer,
                      Vitaliy and De Giovannini, Umberto and Rubio, Angel and
                      Soubatch, Serguei and Ramsey, Michael G. and Tautz, F.
                      Stefan and Puschnig, Peter},
      title        = {{C}ircular dichroism in the photoelectron angular
                      distribution of achiral molecules},
      publisher    = {arXiv},
      reportid     = {FZJ-2025-03158},
      year         = {2025},
      abstract     = {Circular dichroism in the angular distribution (CDAD) is
                      the effect that the angular intensity distribution of
                      photoemitted electrons depends on the handedness of the
                      incident circularly polarized light. A CDAD may arise from
                      intrinsic material properties like chirality, spin-orbit
                      interaction, or quantum-geometrical effects on the
                      electronic structure. In addition, CDAD has also been
                      reported for achiral organic molecules at the interface to
                      metallic substrates. For this latter case, we investigate
                      two prototypical $π$-conjugated molecules, namely tetracene
                      and pentacene, whose frontier orbitals have a similar shape
                      but exhibit distinctly different symmetries. By comparing
                      experimental CDAD momentum maps with simulations within
                      time-dependent density functional theory, we show how the
                      final state of the photoelectron must be regarded as the
                      source of the CDAD in such otherwise achiral systems. We
                      gain additional insight into the mechanism by employing a
                      simple scattering model for the final state, which allows us
                      to decompose the CDAD signal into partial wave
                      contributions.},
      keywords     = {Materials Science (cond-mat.mtrl-sci) (Other) / FOS:
                      Physical sciences (Other)},
      cin          = {PGI-3 / PGI-6},
      cid          = {I:(DE-Juel1)PGI-3-20110106 / I:(DE-Juel1)PGI-6-20110106},
      pnm          = {5213 - Quantum Nanoscience (POF4-521) / Orbital Cinema -
                      Photoemission Orbital Cinematography: An ultrafast wave
                      function lab (101071259)},
      pid          = {G:(DE-HGF)POF4-5213 / G:(EU-Grant)101071259},
      typ          = {PUB:(DE-HGF)25},
      doi          = {10.48550/ARXIV.2507.12113},
      url          = {https://juser.fz-juelich.de/record/1044387},
}