Abstract

We report on voltage impulse induced reversible bistable magnetization switching in FeGaB/lead zirconate titanate (PZT) multiferroic heterostructures at room temperature. This was realized through strain-mediated magnetoelectric coupling between ferroelectric PZT and ferromagnetic FeGaB layer. Two reversible and stable voltage-impulse induced mechanical strain states were obtained in the PZT by applying an electric field impulse with its amplitude smaller than the electric coercive field, which led to reversible voltage impulse induced bistable magnetization switching. These voltage impulse induced bistable magnetization switching in multiferroic heterostructures provides a promising approach to power efficient bistable magnetization switching that is crucial for information storage.

Notes

Originally published in Appl. Phys. Lett. 100, 132409 (2012). DOI:10.1063/1.3698363

Keywords

boron alloys, ferroelectric coercive field, interface magnetism, bistable magnetic switching, magnetoelectric effects, multiferroics, FeGaB, lead zirconate titanate, PZT

Subject Categories

Ferromagnetic materials, Gallium alloys, Iron alloys, Lead compounds, Magnetization

Disciplines

Electromagnetics and photonics

Publisher

American Institute of Physics

Publication Date

3-28-2012

Rights Information

© 2012 American Institute of Physics

Rights Holder

American Institute of Physics

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figure1.zip (179 kB)
Figure 1

figure2.zip (163 kB)
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figure3.zip (142 kB)
Figure 3

figure4.zip (161 kB)
Figure 4

figure5.zip (165 kB)
Figure 5

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