Electric-field manipulation of coercivity in FePt/Pb(Mg1/3Nb2/3)O3-PbTiO3 heterostructures investigated by anomalous Hall effect measurement

被引：11

作者：

Liu, Mingfeng ^{[1
]}

Hao, Liang ^{[1
]}

Jin, Tianli ^{[1
]}

Cao, Jiangwei ^{[1
]}

Bai, Jianmin ^{[1
]}

Wu, Dongping ^{[1
]}

Wang, Ying ^{[1
]}

Wei, Fulin ^{[1
]}

机构：

[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2015年 / 8卷 / 06期

基金：

中国国家自然科学基金;

关键词：

STRAIN;

D O I：

10.7567/APEX.8.063006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of electric field (E-field) on the magnetism of FePt thin films in FePt/0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) (PMN-PT) heterostructures was investigated by anomalous Hall effect measurement. For FePt films of different thicknesses, the coercivity vs E-field curves show a typical butterfly-like loop behavior. Further results indicate that the coercivity variation is composed of the volatile symmetrical butterfly-like loop and nonvolatile hysteresis loop-like parts, which originate from the volatile and nonvolatile strains induced by the E-field in the PMN-PT(001) substrate, respectively. No significant difference has been observed after inserting a 2nm W interlayer, suggesting that the charge-mediated coercivity variation is negligible in FePt/PMN-PT heterostructures. (C) 2015 The Japan Society of Applied Physics

引用

页数：4

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