Bulk-like d band of SrVO3 under a self-protective cap layer
  We have performed a detailed angel-resolved photoemission spectroscopy study of in-situ prepared SrVO3 thin films. Naturally capped by a ``transparent'' protective layer, contributions from surface states centered at ~ -1.5 eV are dramatically reduced, enabling us to study the bulk V 3d states. We have observed a clear band dispersion not only in the coherent quasiparticle part but also in the incoherent part, which are reproduced by dynamical mean-field theory calculations and the spectral weight of the incoherent part is stronger within the Fermi surface. 
M. Takizawa, M. Minohara, H. Kumigashira, D. Toyota, M. Oshima, H.   Wadati, T. Yoshida, A. Fujimori, M. Lippmaa, M. Kawasak...