Magnetization Plateau of the $S={1 \over 2}$ Distorted Diamond Spin Chain with Ferromagnetic Interaction

TL;DR

This study investigates the magnetization process of a distorted diamond spin chain with ferromagnetic interactions, revealing two distinct plateau phases at one-third saturation magnetization through numerical analysis.

Contribution

It introduces a numerical diagonalization approach combined with level spectroscopy to identify magnetization plateau phases in a distorted diamond spin chain.

Findings

Two magnetization plateau phases at 1/3 saturation magnetization identified.

Phase diagrams for various interaction parameters provided.

Magnetization curves for typical parameters obtained.

Abstract

The magnetization process of the $S=1/2$ distorted diamond spin chain with ferromagnetic interactions is investigated using the numerical diagonalization of finite-size clusters. The level spectroscopy analysis applied for the model with the spin anisotropy indicates that two different magnetization plateau phases appear at 1/3 of the saturation magnetization. The phase diagrams for some typical interaction parameters are presented. In addition the magnetization curves for several typical parameters are obtained.