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@ARTICLE{Bahn:142536,
      author       = {Bahn, J. and Oelßner, P. and Köther, M. and Braun,
                      Christian and Senz, V. and Palutke, S. and Martins, M. and
                      Rühl, E. and Ganteför, G. and Möller, T. and von
                      Issendorff, B. and Bauer, D. and Tiggesbäumker, J. and
                      Meiwes-broer, K.-H. and DESY},
      title        = {{P}b 4f {P}hotoelectron {S}pectroscopy on {M}ass-{S}elected
                      {A}nionic {L}ead {C}lusters at {FLASH}},
      journal      = {New journal of physics},
      volume       = {14},
      number       = {7},
      issn         = {1367-2630},
      address      = {London},
      publisher    = {RSC},
      reportid     = {PHPPUBDB-25534},
      pages        = {075008 -},
      year         = {2012},
      abstract     = {4f core level photoelectron spectroscopy has been performed
                      on negatively charged lead clusters, in the size range of
                      10–90 atoms. We deploy4.7 nm radiation from the
                      free-electron laser FLASH, yielding sufficiently high photon
                      flux to investigate mass-selected systems in a beam. A new
                      photoelectron detection system based on a hemispherical
                      spectrometer and a time-resolving delayline detector makes
                      it possible to assign electron signals to each micropulse of
                      FLASH. The resulting 4f binding energies show good agreement
                      with the metallic sphere model, giving evidence for a fast
                      screening of the 4f core holes. By comparing the present
                      work with previous 5d and valence region data, the paper
                      presents a comprehensive overview of the energetics of lead
                      clusters, from atoms to bulk. Special care is taken to
                      discuss the differences of the valenceandcore-level anion
                      cluster photoionizations. Whereas in the valence case the
                      escaping photoelectron interacts with a neutral system near
                      its ground state, core-level ionization leads to transiently
                      highly excited neutral clusters. Thus, the photoelectron
                      signal might carry information on the relaxation dynamics.},
      cin          = {HASYLAB(-2012)},
      ddc          = {540},
      cid          = {$I:(DE-H253)HASYLAB_-2012_-20130307$},
      pnm          = {Facility (machine) FLASH (POF2-FLASH-20130405) / FLASH
                      Beamline BL1 (POF2-54G16) / FS-Proposal: F-20090322
                      (F-20090322)},
      pid          = {G:(DE-H253)POF2-FLASH-20130405 /
                      G:(DE-H253)POF2-BL1-20130405 / G:(DE-H253)F-20090322},
      experiment   = {EXP:(DE-H253)FLASH(machine)-20150101 /
                      EXP:(DE-H253)F-BL1-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000307069900008},
      doi          = {10.1088/1367-2630/14/7/075008},
      url          = {https://bib-pubdb1.desy.de/record/142536},
}