Large converse magnetoelectric coupling in FeCoV/lead zinc niobate-lead titanate heterostructure

被引：41

作者：

Chen, Yajie ^{[1
,2
]}

Gao, Jinsheng ^{[1
,2
]}

Fitchorov, Trifon ^{[1
,2
]}

Cai, Zhuhua ^{[3
]}

Ziemer, K. S. ^{[3
]}

Vittoria, Carmine ^{[1
,2
]}

Harris, V. G. ^{[1
,2
]}

机构：

[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

[2] Northeastern Univ, Ctr Microwave Magnet Mat & Integrated Circuits, Boston, MA 02115 USA

[3] Northeastern Univ, Dept Chem Engn, Boston, MA 02115 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 08期

关键词：

cobalt alloys; ferroelectric materials; ferromagnetic materials; iron alloys; lead compounds; magnetic anisotropy; magnetic hysteresis; magnetoelectric effects; magnetostriction; multiferroics; vanadium alloys; zinc compounds; PT SINGLE-CRYSTALS; PZN-PT; FERROMAGNETIC HYSTERESIS; STRESS DEPENDENCE; THIN-FILM; FIELD; MODEL; BULK;

D O I：

10.1063/1.3086879

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multiferroic behavior was directly verified in a laminated ferroelectric-ferromagnetic heterostructure consisting of a FeCoV thick film (70 mu m) and lead zinc niobate-lead titanate (PZN-PT) single crystal. This unique heterostructure demonstrates a significant converse magnetoelectric (CME) effect corresponding to a CME coupling constant of 31 Oe/kV cm(-1). It derives from the soft magnetic and magnetostrictive properties (lambda=60 ppm) of FeCoV alloy and the superior electromechanical properties (d(32)=-2800 pC/N) of PZN-PT crystal. The electric field controlled magnetic hysteresis is discussed in terms of a stress-induced anisotropy field model. The theoretical calculation is within 7% of the measured induced field of 240 Oe.

引用

页数：3

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