Striped pnictides as new strongly correlated systems

TL;DR

This paper suggests that striped ferropnictides, due to their small chemical potential, exhibit enhanced one-dimensionality and strong correlations, making them promising systems for studying complex quantum states similar to those in cuprates.

Contribution

It proposes that striped ferropnictides can be modeled as coupled one-dimensional spin liquids, offering a new platform to explore strongly correlated phenomena.

Findings

Stripe modulation effects are more pronounced in ferropnictides.

Striped pnictides can be treated as arrays of coupled 1D spin liquids.

Potential for studying strongly correlated states akin to cuprates.

Abstract

The recent experimental evidence in favor of stripe ordering in ferropnictides [Chuang {\it et. al.}, Science {\bf 327},181 (2010)] points to the new field of study for strongly correlated systems. Here we argue that due to the smallness of the chemical potential in ferropnictides the effects of stripe modulation are likely to be much more pronounced than in the cuprates leading to stronger degree of one-dimensionality. This may allow to treat the striped pnictides as an array of coupled one-dimensional spin liquids making them a good testing ground for various ideas concerning strongly correlated states originally proposed for the cuprates.