Experimental evidence for nematic order of cuprates in relation to lattice structure

TL;DR

This paper reviews experimental evidence regarding the nematic order in cuprates and argues that current experiments do not conclusively establish a nematic origin of the pseudogap phase, considering lattice structure influences.

Contribution

It critically assesses existing experiments on nematic order in cuprates, highlighting the need for more definitive evidence linking nematicity to the pseudogap.

Findings

Current experiments are inconclusive about nematic order in cuprates

Lattice structure considerations complicate interpretation of pseudogap phenomena

More targeted experiments are needed to establish nematicity as the pseudogap's origin

Abstract

Experiments that have been interpreted as providing evidence that the pseudogap phase in cuprates is an electronic nematic are discussed from the point of view of lattice structure. We conclude that existing experiments are not sufficient to prove a nematic origin of the pseudogap in underdoped cuprates.