Flexural deformation in a compositionally stepped ferrite and magnetoelectric effects in a composite with piezoelectrics

被引：85

作者：

Mandal, S. K. ^{[1
]}

Sreenivasulu, G. ^{[1
]}

Petrov, V. M. ^{[1
]}

Srinivasan, G. ^{[1
]}

机构：

[1] Oakland Univ, Dept Phys, Rochester, MI 48307 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 19期

基金：

美国国家科学基金会;

关键词：

bending; bending strength; ferrites; laminates; lead compounds; magnetoelectric effects; magnetomechanical effects; piezoelectricity;

D O I：

10.1063/1.3428774

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The nature of strain mediated magnetoelectric (ME) coupling is investigated in laminates of lead zirconate titanate (PZT) and compositionally stepped ferrite with grading of piezomagnetic coefficient. ME effects that could only be attributed to grading related bending strain are observed in a trilayer of ferrite and oppositely poled PZT. It is shown that in a bilayer, grading induced flexural strain counteracts bending moment due to structural asymmetry and enhances ME coupling by a factor of 2. A zero-bias field ME effect is observed in such laminates. The graded composites are of interest for self-biased magnetic field sensors. (C) 2010 American Institute of Physics. [doi:10.1063/1.3428774]

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页数：3

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