Genesis of coexisting itinerant and localized electrons in Iron Pnictides

TL;DR

This paper explores how the electronic structure of Fe-based high-Tc superconductors naturally leads to coexistence of itinerant and localized electrons, supported by advanced computational methods and experimental comparisons.

Contribution

It introduces a theoretical framework explaining the coexistence of itinerant and localized electrons in iron pnictides using slave-spin and dynamical mean-field calculations.

Findings

Supports the coexistence of itinerant and localized electrons in Fe-based superconductors

Provides computational evidence aligning with experimental magnetic properties

Highlights the role of electronic structure in electron localization phenomena

Abstract

We show how the general features of the electronic structure of the Fe-based high-Tc superconductors are a natural setting for a selective localization of the conduction electrons to arise. Slave-spin and Dynamical mean-field calculations support this picture and allow for a comparison of the magnetic properties with experiments.