Electronic structure of SrRuO 3
1997; American Physical Society; Volume: 56; Issue: 11 Linguagem: Inglês
10.1103/physrevb.56.6380
ISSN1095-3795
AutoresKana Fujioka, J. Okamoto, T. Mizokawa, A. Fujimori, Izumi Hase, M. Abbate, H. J. Lin, C. T. Chen, Y. Takeda, M. Takano,
Tópico(s)Electronic and Structural Properties of Oxides
ResumoWe have measured photoemission and oxygen $1s$ x-ray absorption spectra of the ferromagnetic metal ${\mathrm{SrRuO}}_{3}$ and compared them with a first-principles band-structure calculation. The overall distribution of Ru $4d$ and O $2p$ spectral weight is in good agreement with that predicted by the band-structure calculation. However, the observed spectral line shape of the Ru $4d$ band is spread over a wide energy range and the emission intensity at the Fermi level is weakened compared to the band-structure calculation. This implies the importance of electron correlation in the Ru oxide.
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