The interplay between band and atomic aspects in materials with coexisting wide-band and flat-band states, or wide-band and effectively dispersionless electronic states is increasingly expected to lead to novel behavior. Using dynamical mean-field theory (DMFT), we investigate strange metal-like behavior and emergence of unconventional superconductivity in a toy model that captures this interplay. Surprisingly, we find good accord with transport features seen in underdoped cuprates and ladder Fe arsenides. We connect our findings to proposals of ${\mathrm{FL}}^{*}$ and orthogonal Fermi liquids, and present a route to its direct instability to novel, competing orders.

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• Charge density waves
• Excitons
• Strongly correlated systems
• Unconventional superconductors
• DFT+DMFT