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arXiv · 2508.06887

Strange-like Metallicity in a Toy Model with Selective-Mottness

M. S. Laad·S. R. Hassan
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Abstract

The interplay between band and atomic aspects in materials with co-existing 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 FL$^{*}$ and orthogonal Fermi liquids, and present a route to it's direct instability to novel, competing orders.

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M. S. Laad, S. R. Hassan. 2025-08-09. Strange-like Metallicity in a Toy Model with Selective-Mottness. https://arxiv.org/abs/2508.06887

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