Coupling between electron-spin and ferromagnetic clusters

TL;DR

This paper investigates the adiabatic magnetization of ferromagnetic clusters, revealing a non-monotonic susceptibility behavior influenced by anisotropic potential and Coriolis coupling effects.

Contribution

It introduces the first calculation of Coriolis coupling effects on ferromagnetic clusters and explores their impact on magnetic susceptibility.

Findings

Magnetic susceptibility shows a peak as a function of coupling.

Coriolis coupling reduces the susceptibility.

Susceptibility behavior is non-monotonic in the intermediate coupling regime.

Abstract

We analyze the adiabatic magnetization of ferromagnetic clusters in an intermediate coupling regime, where the anisotropic potential is comparable to other energy scales. We find a non-monotonic behavior of the magnetic susceptibility as a function of coupling with a peak. Coriolis coupling effects are calculated for the first time; they reduce the susceptibility somewhat.