Computer Simulations on Barkhausen effects and Magnetizations in Fe Nano-Structure Systems

TL;DR

This paper uses large-scale numerical simulations to study magnetization processes and Barkhausen effects in Fe nano-structures, revealing fundamental phenomena through detailed modeling of magnetic dipole interactions.

Contribution

It introduces a computational approach to simulate magnetization and Barkhausen effects in Fe nano-systems using classical dipole interactions and large-scale computing.

Findings

Demonstrates magnetization jumps and terraces due to external field changes

Shows Barkhausen effects can be modeled with step-like magnetization changes

Provides insights into fundamental magnetic phenomena in nano-structures

Abstract

The magnetization processes in Fe nano-systems are investigated using the numerical simulations based on classical magnetic dipole moment interactions. The domain energies are calculated from moment-moment interactions over whole systems using large scale computing resources. The results directly show most of basic magnetization phenomena. The Barkhausen effects are represented with jumps and terraces of magnetization steps induced from external field changes of {\Delta}H.