Stable states of systems of bistable magnetostrictive wires against applied field, applied stress and spatial geometry

TL;DR

This paper investigates how the interplay of magnetostatic interactions, applied stress, and spatial arrangement affects the stable magnetic states of bistable magnetostrictive wire systems, with implications for data encoding.

Contribution

It introduces a model for stable magnetic states considering spatial position, stress, and applied field, advancing understanding of wire interactions and potential data storage applications.

Findings

Stable states depend on wire position, stress, and applied field.

Magnetostatic interactions significantly influence hysteresis behavior.

Potential for encoding system history using stable magnetic states.

Abstract

Long-range magnetostatic interaction between wires strongly depends on their spatial position. This interaction, combined with applied tensile stress, influences the hysteresis loop of the system of wires through the stress dependence of their coercive fields. As a result, we obtain a set of stable magnetic states of the system, dependent on the applied field, applied stress and mutual positions of the wires. These states can be used to encode the system history.