Tuning magnetic charge population and mobility in unidirectional array of nanomagnets as a function of lattice parameters

TL;DR

This study experimentally investigates how lattice parameters affect magnetic charge population and mobility in unidirectional nanomagnet arrays, providing insights for optimizing nanomagnetic logic and magnetricity applications.

Contribution

It offers new experimental data on tuning magnetic charge dynamics via lattice parameters, supporting and extending theoretical models for nanomagnet design.

Findings

Magnetic charge mobility can be tuned by lattice spacing.

Experimental results partially confirm theoretical predictions.

Optimal lattice parameters enhance charge transport efficiency.

Abstract

Sets of nanomagnets are often utilized to mimic cellular automata in design of nanomagnetic logic devices or frustration and emergence of magnetic charges in artificial spin ice systems. in previous work we showed that unidirectional arrangement of nanomagnets can behave as artificial spin ice, with frustration arising from second neighbor dipolar interaction, and present good magnetic charge mobility due to the low string tension among charges. Here, we present an experimental investigation of magnetic charge population and mobility in function of lateral and longitudinal distance among nanomagnets. Our results corroborate partially the theoretical predictions, performed elsewhere by emergent interaction model, could be useful in nanomagnet logic devices design and brings new insights about the best design for magnetic charge ballistic transport under low external magnetic field with magnetic charge mobility tunning for application in magnetricity.