Strange-metal behavior in a Fermi liquid with strange scatterers

TL;DR

This paper demonstrates that the anomalous low-temperature properties of cuprate superconductors can be explained by a Fermi liquid model with localized strange scatterers, suggesting a new perspective on their quasiparticle behavior.

Contribution

It introduces a model with localized strange scatterers within a Fermi liquid to account for anomalous transport properties in cuprates, bridging quasiparticle theory and observed anomalies.

Findings

The model reproduces key transport anomalies of cuprates.

Localized strange scatterers can originate from electronic glassy states.

The approach offers a quasiparticle-based explanation for strange-metal behavior.

Abstract

A variety of low-temperature, normal-state properties of optimally and overdoped cuprate superconductors, including the DC and optical transport responses, are sufficiently anomalous that they might seem to be inconsistent with any quasiparticle description. However, we show by explicit construction that the most salient phenomena can be accounted for in a system with localized "strange scatterers" embedded into a Fermi liquid with a conventional quasiparticle description. Such scatterers could originate from "two-level systems" associated with an electronic glassy state with short-range charge-order correlations.