Charge Density Distributions in Doped Antiferromagnetic Insulators

TL;DR

This paper investigates the nano-scale charge density configurations in underdoped antiferromagnetic insulators using a modified Faddeev-Niemi model, revealing conditions favoring quasi-one-dimensional structures.

Contribution

It introduces a soft Faddeev-Niemi model variant to analyze charge distributions, identifying doping and temperature conditions that favor specific nano-scale structures.

Findings

Charge density forms closed quasi-one-dimensional structures.

Such configurations are preferred at certain doping levels and temperatures.

The model provides insights into nano-scale charge arrangements in antiferromagnetic insulators.

Abstract

We consider the form of the charge density nano-scale configurations in underdoped states of planar antiferromagnetic insulators in the framework of a soft variant of Faddeev-Niemi model. It is shown that there is such a level of doping and the temperature range, where charge density distributions in the form of closed quasi-one-dimensional structures are more preferable.