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@ARTICLE{Hirahara:55713,
      author       = {Hirahara, T. and Nagao, T. and Matsuda, I. and Bihlmayer,
                      G. and Chulkov, E. V. and Koroteev, Yu. M. and Hasegawa, S.},
      title        = {{Q}uantum well states in ultrathin {B}i
                      films:{A}ngle-resolved photoemission spectroscopy and
                      first-principles calculations study},
      journal      = {Physical review / B},
      volume       = {75},
      number       = {3},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-55713},
      pages        = {035422},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Quantum well states (QWSs) in ultrathin Bi(001) films grown
                      on Si(111)-7 x 7 with thicknesses up to several tens of
                      nanometers were studied by angle-resolved photoemission
                      spectroscopy and first-principles calculations. We observed
                      QWSs at various points in k-space; those located near
                      (Gamma) over bar are very difficult to distinguish while the
                      QWS peaks at off-normal emission (M) over bar are clearly
                      resolved and show highly anisotropic features due to the
                      saddle-point-like band dispersion near the Fermi level of
                      bulk Bi along the L-X direction. The features of the QWSs
                      are well-reproduced by ab initio calculations for
                      free-standing Bi slabs. The standard method of the
                      phase-shift accumulation model is applied to the QWSs and
                      the bulk band dispersion perpendicular to the surface at
                      finite parallel momentum is experimentally obtained for the
                      first time. The phase shifts at the film interfaces are
                      discussed in detail. The QWSs have little contribution to
                      the electronic structure near the Fermi level and this
                      suggests that the macroscopic physical properties of the
                      films in the thickness of several atomic layers are likely
                      determined by the highly metallic surface states.},
      keywords     = {J (WoSType)},
      cin          = {CNI / IFF-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB381 / I:(DE-Juel1)VDB781},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000243895400146},
      doi          = {10.1103/PhysRevB.75.035422},
      url          = {https://juser.fz-juelich.de/record/55713},
}