Bulk-like d band of SrVO3 under a self-protective cap layer

M. Takizawa; M. Minohara; H. Kumigashira; D. Toyota; M. Oshima; H. Wadati; T. Yoshida; A. Fujimori; M. Lippmaa; M. Kawasaki; H. Koinuma; G. Sordi; M. Rozenberg

arXiv · 0806.2231

Bulk-like d band of SrVO3 under a self-protective cap layer

M. Takizawa·M. Minohara·H. Kumigashira·D. Toyota·M. Oshima·H. Wadati·T. Yoshida·A. Fujimori·M. Lippmaa·M. Kawasaki·H. Koinuma·G. Sordi·M. Rozenberg

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Abstract

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.

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M. Takizawa, M. Minohara, H. Kumigashira, D. Toyota, M. Oshima, H. Wadati, T. Yoshida, A. Fujimori, M. Lippmaa, M. Kawasaki, H. Koinuma, G. Sordi, M. Rozenberg. 2008-06-13. Bulk-like d band of SrVO3 under a self-protective cap layer. https://arxiv.org/abs/0806.2231

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