A strong coupling critique of spin fluctuation driven charge order in underdoped cuprates

TL;DR

This paper critically examines the spin fluctuation theory for charge order in underdoped cuprates, finding that strong coupling effects suppress bond-oriented order and suggesting a different origin for the observed charge order.

Contribution

The study reanalyzes charge order in cuprates using full Brillouin zone strong coupling equations, challenging previous spin fluctuation explanations.

Findings

Bond-oriented charge order is strongly suppressed in the model.

Spin fluctuation driven charge order is unlikely to be the primary mechanism.

Charge order in cuprates likely has a different origin.

Abstract

Charge order has emerged as a generic feature of doped cuprates, leading to important questions about its origin and its relation to superconductivity. Recent experiments on two classes of hole doped cuprates indicate a novel d-wave symmetry for the order. These were motivated by earlier spin fluctuation theoretical studies based on an expansion about hot spots in the Brillouin zone that indicated such order would be competitive with d-wave superconductivity. Here, we reexamine this problem by solving strong coupling equations in the full Brillouin zone. Our results find that bond-oriented order, as seen experimentally, is strongly suppressed, indicating that the charge order must have a different origin.