Hysteresis and compensation behaviors of spin-1 hexagonal Ising nanowire

TL;DR

This study uses effective-field theory to analyze the hysteresis, susceptibility, and compensation behaviors of a spin-1 hexagonal Ising nanowire with core-shell structure, revealing complex hysteresis loops and various compensation types.

Contribution

It provides a detailed theoretical investigation of hysteresis and compensation behaviors in spin-1 hexagonal Ising nanowires, including effects of temperature, fields, and coupling, with comparison to experimental data.

Findings

Double and triple hysteresis loops observed at weak interfacial coupling

Multiple types of compensation behaviors identified (Q, R, S, P, N, W)

Good agreement with experimental and theoretical results

Abstract

An effective-field theory with correlations has been used to study the hysteresis, susceptibility and compensation behaviors of the spin-1 hexagonal Ising nanowire (HIN) with core-shell structure. The effects of the temperature, crystal field, core-shell interfacial coupling and shell surface coupling are investigated on hysteresis and compensation behaviors, in detail. When the core-shell interfacial coupling is weak, the double and triple hysteresis loops can be seen in the system. The hysteresis loops have different coercive field points that the susceptibility make peak at these points. Moreover, we observed that the system displays the Q-, R-, S-, P-, N- and W-types of compensation behaviors according to Ne\'el classification nomenclature. Finally, the obtaining results are compared with some experimental and theoretical results and found a good agreement.