Dynamic hysteretic features of the Ising-type thin films

TL;DR

This paper investigates the dynamic hysteretic behavior of Ising-type thin films, focusing on frequency effects, domain mechanisms, and surface phenomena, using recent theoretical insights to analyze different surface exchange regimes.

Contribution

It introduces a detailed analysis of hysteretic features in magnetic thin films considering surface effects and oscillatory perturbations, expanding understanding of their dynamic responses.

Findings

Frequency dispersion curves vary with surface exchange

Hysteresis loop area decay depends on surface parameters

Surface enhancement influences domain nucleation mechanisms

Abstract

In order to elucidate the important characteristics of hysteretic response, such as types of the frequency dispersion curves, the decay of hysteresis loop area, the mechanism of domain nucleation and/or growth in the dynamic process, etc., a followup examination after the original work has been presented. The additive complementary treatment is essentially based on the results of recent preprint arXiv:1302.2727 concerning the effect of oscillatory perturbation on the surface enhancement phenomenon in magnetic thin films. Throughout the analysis, the best appropriate parameter values have been chosen since they would allow us to achieve striking results. The topology of the response for different layer indices in two regimes of modified surface exchange has been particularly emphasized.