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Evidence for strong electronic correlations in the spectra of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi mathvariant="normal">Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi mathvariant="normal">Ru</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
We identify a satellite structure at $\ensuremath{-}3\phantom{\rule{0.3em}{0ex}}\mathrm{eV}$ in the photoemission spectra of layered perovskite ${\mathrm{Sr}}_{2}\mathrm{Ru}{\mathrm{O}}_{4}$ as a lower Hubbard band. To this end we use state-of-the-art local-density approximation plus dynamical mean-field theory (LDA+DMFT) in the basis of Wannier functions to compute spectral functions and the quasiparticle dispersion of ${\mathrm{Sr}}_{2}\mathrm{Ru}{\mathrm{O}}_{4}$, and …