Incoherent magnetization dynamics in strain mediated switching of magnetostrictive nanomagnets

TL;DR

This paper investigates the complex magnetization dynamics in magnetostrictive nanomagnets under stress, revealing size-dependent behaviors with implications for energy-efficient nanomagnetic computing.

Contribution

It provides a detailed micromagnetic analysis of how size influences stress-induced magnetization changes in nanomagnets, highlighting the interplay of various energies.

Findings

Size-dependent magnetization dynamics identified

Rich physics due to energy interplay explained

Implications for ultralow energy nanomagnetic devices

Abstract

Micromagnetic studies of the magnetization change in magnetostrictive nanomagnets subjected to stress are performed for nanomagnets of different sizes. The interplay between demagnetization, exchange and stress anisotropy energies is used to explain the rich physics of size-dependent magnetization dynamics induced by modulating stress anisotropy in planar nanomagnets. These studies have important implications for strain mediated ultralow energy magnetization change in nanomagnets and its application in energy-efficient nanomagnetic computing systems.