Issue 38, 2019

Magnon-driven interfacial magnetoelectric coupling in Co/PMN-PT multiferroic heterostructures

Abstract

Magnon-driven interfacial magnetoelectric coupling in Co/PMN-PT multiferroic heterostructures is investigated at room temperature. The electric field controlled ferromagnetic resonance field possesses a loop-like curve, with a large resonance field shift between positive and negative remanent polarizations, which confirms a non-volatile strong magnetoelectric coupling. However, with a non-magnetic Ta layer inserted at the Co/PMN-PT interface, a piezostrain-induced butterfly-like curve of the resonance field versus applied electric field of the Co/Ta/PMN-PT multiferroic heterostructure is observed. Further, the non-volatile behavior of the resonance field changing with the applied electric field can be obtained, consistent with the result of polarization versus applied electric field curve, which can be attributed to the magnon-driven interfacial magnetoelectric coupling, showing a strong correlation of magnetization of Co thin film and the polarization of PMN-PT. The result is promising for the design of future multiferroic devices.

Graphical abstract: Magnon-driven interfacial magnetoelectric coupling in Co/PMN-PT multiferroic heterostructures

Article information

Article type
Paper
Submitted
26 Jul 2019
Accepted
03 Sep 2019
First published
03 Sep 2019

Phys. Chem. Chem. Phys., 2019,21, 21438-21444

Magnon-driven interfacial magnetoelectric coupling in Co/PMN-PT multiferroic heterostructures

C. Zhou, M. Zhang, C. Feng, M. Xu, S. Wang and C. Jiang, Phys. Chem. Chem. Phys., 2019, 21, 21438 DOI: 10.1039/C9CP04169A

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