Issue 35, 2018

Charge-assisted non-volatile magnetoelectric effects in NiFe2O4/PMN-PT heterostructures

Abstract

Electric field tuning of magnetization is a viable path to realize magnetoelectric (ME) coupling effect while developing novel multifunctional devices. The combined charge and strain effects can produce multilevel manipulation in multiferroic heterostructures. Both charge and strain co-mediated ME effects were investigated in NiFe2O4/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (NFO/PMN-PT) and NFO/Pt/PMN-PT heterostructures. The charge effect was detected by the existence of magnetization imparities between the positive and negative fields. The imparities could be enlarged by inserting a Pt buffer layer between the NFO film and PMN-PT substrate. The suppressed depolarization field effect enhanced ferroelectric polarization of PMN-PT, which strengthened the polarization-dependent charge effect in the NFO/Pt/PMN-PT heterostructures. The enhancement of the charge effect helped achieve a stronger ferromagnetic–ferroelectric coupling effect.

Graphical abstract: Charge-assisted non-volatile magnetoelectric effects in NiFe2O4/PMN-PT heterostructures

Supplementary files

Article information

Article type
Paper
Submitted
20 Jun 2018
Accepted
20 Aug 2018
First published
20 Aug 2018

Phys. Chem. Chem. Phys., 2018,20, 23079-23084

Charge-assisted non-volatile magnetoelectric effects in NiFe2O4/PMN-PT heterostructures

X. Pang, C. Jin, G. Gao, D. Li, D. Zheng and H. Bai, Phys. Chem. Chem. Phys., 2018, 20, 23079 DOI: 10.1039/C8CP03900C

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