Magnetization steps of $J_{1}$ quintets in the hcp lattice

TL;DR

This study investigates the magnetization steps of quintet clusters in an hcp lattice, using numerical methods to determine step fields and contributions to saturation for various spin values.

Contribution

It introduces a detailed analysis of quintet cluster magnetization steps in the hcp lattice, including numerical determination of step fields and their impact on saturation.

Findings

Magnetization step fields were numerically determined for different spin values.

The contribution of quintets to effective saturation varies with ion concentration.

The model includes 17 types of quintets in the hcp lattice.

Abstract

The magnetization steps of quintet clusters, consisting of five identical magnetic ions coupled by isotropic nearest neighbors antiferromagnetic exchange interaction in the hcp lattice, have been investigated. In that model, called the $J_1$ model, there are 17 types of quintets. The values of the magnetic field of the magnetization steps of the clusters have been determined by the numerical diagonalization of the spin Hamiltonian. The simulations have been performed for quintets composed of individual spin $S$ = 1/2, 3/2 and 5/2. The contribution of the quintets to the effective concentration (or technical saturation) as a function of the magnetic ion concentration was also calculated.