The existence of a stable noncollinear phase in a Heisenberg model with a complex structure

TL;DR

This paper investigates a specific noncollinear magnetic phase in a Heisenberg model with complex structure, analyzing its stability and existence conditions through mean-field analysis.

Contribution

It identifies the conditions under which a stable noncollinear phase exists in a coupled Heisenberg subsystems model.

Findings

Noncollinear phase exists within a narrow parameter domain.

Stability depends on the ratio of microscopic exchange parameters.

Mean-field analysis reveals the phase's properties.

Abstract

We have analyzed the properties of a noncollinear magnetic phase obtained in the mean-field analysis of the model of two coupled Heisenberg subsystems. The domain of its existence and stability is narrow and depends on the ratio between the averaged over nearest neighbours microscopic exchange parameters.