Prefer a chat interface with context about you and your work?
Evidence against strong correlation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>4</mml:mn><mml:mi>d</mml:mi></mml:mrow></mml:math>transition-metal oxides<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>CaRuO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>SrRuO</mml:mi><mml:mn>3…
We investigate the electronic structure of $4d$ transition-metal oxides ${\mathrm{CaRuO}}_{3}$ and ${\mathrm{SrRuO}}_{3}$. The analysis of the photoemission spectra reveals significantly weak electron correlation strength $(U∕W\ensuremath{\sim}0.2)$ as expected in $4d$ systems and resolves the long-standing issue that arose due to the prediction of large $U∕W$ similar to $3d$ systems. It is …