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@ARTICLE{Hauko:425412,
      author       = {Hauko, R. and Padežnik Gomilšek, J. and Kodre, A. and
                      Arčon, I. and Aquilanti, G.},
      title        = {{E}ffects of the molecular potential on coexcitations of
                      valence electrons in the ${K}$-shell photoeffect of $3p$ and
                      $4p$ elements},
      journal      = {Physical review / A},
      volume       = {99},
      number       = {6},
      issn         = {2469-9926},
      address      = {Woodbury, NY},
      publisher    = {APS},
      reportid     = {PUBDB-2019-03227},
      pages        = {062501},
      year         = {2019},
      abstract     = {Photoabsorption spectra of gaseous hydrides of
                      $3p(PH_{3},H_{2}S, HCl)$ and $4p$ elements
                      $(GeH_{4},AsH_{3},H_{2}Se,HBr)$ are measured in the energy
                      region within 50 eV above the $K$ edge, to study
                      coexcitations of valenceelectrons by photoeffect in the $K$
                      shell. The analysis of the valence coexcitations is extended
                      to Ar, Kr, and $SiH_4$. Relative probabilities and energies
                      of states in the individual coexcitation channels are
                      recovered bymodeling the spectral features with a minimal
                      ansatz based on the features in the contiguous noble gas.
                      Theextracted parameters are compared to the results of
                      theoretical calculations for molecules (ORCAcode) andfree
                      atoms (Hartree-Fock code). The experimental results confirm
                      that the valence coexcitations in the $3p$ and $4p$ hydride
                      molecules can be satisfactorily described by a two-step
                      process, with the shake of the outer electronfollowing the
                      excitation of the core electron. The total
                      probability—relative to the $K$-edge jump—of the
                      shake-upprocesses shows a steady decrease from 19\% in Si to
                      14\% in Cl, and from 15\% in Ge to 12\% in Br.
                      Theexperimental values for Ar (12\%) and Kr (10\%) are in
                      accord with the trend. The dominant contribution isthe
                      transition to quasiatomic orbitals, in contrast with the
                      deeper coexcitation channels in hydride moleculeswhere
                      transition to molecular orbitals prevails.},
      cin          = {DOOR},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (POF3-622) / FS-Proposal: I-20180356 EC
                      (I-20180356-EC) / CALIPSOplus - Convenient Access to Light
                      Sources Open to Innovation, Science and to the World
                      (730872)},
      pid          = {G:(DE-HGF)POF3-6G3 / G:(DE-H253)I-20180356-EC /
                      G:(EU-Grant)730872},
      experiment   = {EXP:(DE-H253)P-P65-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000470817900003},
      doi          = {10.1103/PhysRevA.99.062501},
      url          = {https://bib-pubdb1.desy.de/record/425412},
}