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

被引：6

作者：

Pang, Xin ^{[1
]}

Jin, Chao ^{[1
]}

Gao, Guoqin ^{[1
]}

Li, Dong ^{[1
]}

Zheng, Dongxing ^{[1
]}

Bai, Haili ^{[1
]}

机构：

[1] Tianjin Univ, Fac Sci, Tianjin Key Lab Low Dimens Mat Phys & Proc Techno, Tianjin 300350, Peoples R China

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2018年 / 20卷 / 35期

基金：

中国国家自然科学基金;

关键词：

SPIN REORIENTATION TRANSITION; MULTIFERROIC HETEROSTRUCTURES; MAGNETIC-ANISOTROPY; THIN-FILMS; STRAIN; INTERFACE; GROWTH;

D O I：

10.1039/c8cp03900c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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)(0.7)Ti0.3O3 (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.

引用

页码：23079 / 23084

页数：6

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