TY - JOUR
T1 - Evidence for correlation effects i from resonant and x-ray photoemission spectroscopy
AU - Yokoya, T.
AU - Chainani, A.
AU - Takahashi, T.
AU - Katayama-Yoshida, H.
AU - Kasai, M.
AU - Tokura, Y.
PY - 1996
Y1 - 1996
N2 - We study the electronic structure of (Formula presented)(Formula presented), a noncuprate layered superconductor ((Formula presented)=0.93 K), using electron spectroscopy. X-ray photoemission spectroscopy shows that the single particle occupied density of states (DOS) is in fair agreement with the calculated DOS. However, resonant photoemission spectroscopy across the Ru 4p-4d threshold establishes the existence of a correlation satellite to the Ru 4d band. The results indicate substantial charge-transfer character at the Fermi level, with on-site correlations (Formula presented) comparable in magnitude to the Ru-O hopping integral, like the cuprates.
AB - We study the electronic structure of (Formula presented)(Formula presented), a noncuprate layered superconductor ((Formula presented)=0.93 K), using electron spectroscopy. X-ray photoemission spectroscopy shows that the single particle occupied density of states (DOS) is in fair agreement with the calculated DOS. However, resonant photoemission spectroscopy across the Ru 4p-4d threshold establishes the existence of a correlation satellite to the Ru 4d band. The results indicate substantial charge-transfer character at the Fermi level, with on-site correlations (Formula presented) comparable in magnitude to the Ru-O hopping integral, like the cuprates.
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U2 - 10.1103/PhysRevB.53.8151
DO - 10.1103/PhysRevB.53.8151
M3 - Article
AN - SCOPUS:0005904838
SN - 0163-1829
VL - 53
SP - 8151
EP - 8154
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 13
ER -