Effects of exchange distortions in the magnetic Kagome lattice

TL;DR

This paper investigates how exchange distortions affect magnetic phases and spin-wave properties in the Kagome lattice, providing analytical solutions and insights into phase transitions and magnetic fingerprints.

Contribution

It introduces analytical solutions for classical energies and spin-wave modes in distorted Kagome lattices, enhancing understanding of magnetic phase behavior and experimental signatures.

Findings

Distorted exchange interactions lead to various non-collinear magnetic phases.

Spin-wave modes are analytically characterized for different magnetic configurations.

Magnetic fingerprints are identified for experimental characterization.

Abstract

This study examines the effect of distorted triangular magnetic interactions in the Kagome lattice. Using a Holstein-Primakoff expansion, we determine the analytical solutions for classical energies and the spin-wave modes for various magnetic configurations. By understanding the magnetic phase diagram, we characterize the changes in the spin waves and examine the spin distortions of the ferromagnetic (FM), Antiferrimagnetic (AfM), and 120$^{\circ}$ phases that are produced by variable exchange interactions and lead to various non-collinear phases, which provides a deeper understanding of the magnetic fingerprints of these configurations for experimental characterization and identification.