Canted spiral magnetic order in layered systems

TL;DR

This paper investigates the stabilization of canted spiral magnetic order in layered systems using a Hubbard model, demonstrating its relevance to La$_{2-x}$Sr$_x$CuO$_4$ and describing it via non-relativistic band magnetism.

Contribution

It introduces a mean-field approach to explain canted spiral magnetic order in layered materials, linking it to experimental observations in cuprates.

Findings

Canted spiral magnetic order can be stabilized with small interplane hopping.

The magnetic structure of La$_{2-x}$Sr$_x$CuO$_4$ can be explained by non-relativistic band magnetism.

The study provides a theoretical framework for understanding complex magnetic orders in layered systems.

Abstract

Formation of a canted spiral magnetic order is studied in the framework of a mean-field approximation of the Hubbard model. It is revealed that this magnetic state can be stabilized under certain conditions in layered systems with a relatively small interplane electron hopping. Example of an experimentally observed magnetic structure of La$_{2-x}$Sr$_x$CuO$_4$ is considered. It is shown that the canting magnetic order can be described in terms of a simple non-relativistic band magnetism.