Effective 90-degree magnetization rotation in Co2FeAl thin film/Piezoelectric system probed by microstripline ferromagnetic

TL;DR

This study demonstrates a 90-degree magnetization rotation in a Co2FeAl thin film on a piezoelectric system, using microstripline ferromagnetic resonance to quantify the magnetoelectric coupling and validate voltage-induced magnetization switching.

Contribution

It introduces a method to observe and quantify voltage-induced 90-degree magnetization rotation in a magnetoelectric heterostructure using microstripline ferromagnetic resonance.

Findings

Voltage induces 90-degree magnetization rotation.

Quantitative measurement of magnetoelectric coupling.

Validation through frequency variation and spectral amplitude.

Abstract

Microstripline ferromagnetic resonance technique has been used to study the indirect magnetoelectric coupling occurring in an artificial magnetoelectric heterostructure consisting of a magnetostrictive thin film cemented onto a piezoelectric actuator. Two different modes (sweep-field and sweep-frequency modes) of this technique have been employed to quantitatively probe the indirect magnetoelectric coupling and to observe a voltage induced magnetization rotation (of 90 degree). This latter has been validated by the experimental frequency variation of the uniform mode and by the amplitude of the sweep-frequency spectra.