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@ARTICLE{Kuo:859706,
      author       = {Kuo, Cheng-Tai and Lin, Shih-Chieh and Conti, Giuseppina
                      and Pi, Shu-Ting and Moreschini, Luca and Bostwick, Aaron
                      and Meyer-Ilse, Julia and Gullikson, Eric and Kortright,
                      Jeffrey B. and Nemsak, Slavomir and Rault, Julien E. and Le
                      Fèvre, Patrick and Bertran, François and Santander-Syro,
                      Andrés F. and Vartanyants, Ivan A. and Pickett, Warren E.
                      and Saint-Martin, Romuald and Taleb-Ibrahimi, Amina and
                      Fadley, Charles S.},
      title        = {{A}tomic-layer-resolved composition and electronic
                      structure of the cuprate {B} i 2 {S} r 2 {C}a{C} u 2 {O} 8 +
                      δ from soft x-ray standing-wave photoemission},
      journal      = {Physical review / B},
      volume       = {98},
      number       = {15},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2019-00543},
      pages        = {155133},
      year         = {2018},
      abstract     = {A major remaining challenge in the superconducting cuprates
                      is the unambiguous differentiation of the composition and
                      electronic structure of the CuO2 layers and those of the
                      intermediate layers. The large c axis for these materials
                      permits employing soft x-ray (930.3 eV) standing wave (SW)
                      excitation in photoemission that yields atomic
                      layer-by-layer depth resolution of these properties.
                      Applying SW photoemission to Bi2Sr2CaCu2O8+δ yields the
                      depth distribution of atomic composition and the
                      layer-resolved densities of states. We detect significant Ca
                      presence in the SrO layers and oxygen bonding to three
                      different cations. The layer-resolved valence electronic
                      structure is found to be strongly influenced by the atomic
                      supermodulation structure, as determined by comparison to
                      density functional theory calculations, by Ca-Sr
                      intermixing, and by correlation effects associated with the
                      Cu 3d−3d Coulomb interaction, further clarifying the
                      complex interactions in this prototypical cuprate.
                      Measurements of this type for other quasi-two-dimensional
                      materials with large c represent a promising future
                      direction.},
      cin          = {PGI-6},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-6-20110106},
      pnm          = {522 - Controlling Spin-Based Phenomena (POF3-522)},
      pid          = {G:(DE-HGF)POF3-522},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000447721300001},
      doi          = {10.1103/PhysRevB.98.155133},
      url          = {https://juser.fz-juelich.de/record/859706},
}