Fermi surface reconstruction due to hidden rotating antiferromagnetism in n and p-type high-$T_C$ cuprates

TL;DR

This paper uses rotating antiferromagnetism theory to explain Fermi surface reconstructions in high-$T_C$ cuprates, aligning well with experimental data and revealing quantum criticality effects near optimal doping.

Contribution

It provides new insights into the electronic structure of n-type cuprates using rotating antiferromagnetism theory, extending previous work mainly focused on p-type materials.

Findings

Fermi surface topology changes with doping in agreement with experiments.

Reconstruction linked to quantum criticality and disappearance of rotating antiferromagnetism.

Qualitative match with observed quantum oscillations in high-$T_C$ cuprates.

Abstract

The Fermi surface calculated within the rotating antiferromagentism theory undergoes a topological change when doping changes from p-type to n-type, in qualitative agreement with experimental data for n-type cuprate Nd$_{2-x}$Ce$_x$CuO$_4$ and p-type La$_{2-x}$Sr$_x$CuO$_4$. Also, the reconstruction of the Fermi surface observed experimentally close to optimal doing in p-type cuprates, and slightly higher than optimal doping in the overdoped regime for this n-type high-$T_C$ cuprate is well accounted for in this theory, and is a consequence of quantum criticality caused by the disappearance of rotating antiferromagnetism. The present results are in qualitative agreement with the recently observed quantum oscillations in some high-$T_C$ cuprates regarding the change in the size of the Fermi surface as doping evolves and the location of its reconstruction. This paper presents new results about the application of the rotating antiferromagnetism theory to the study of electronic structure for n-type materials.