Small dc magnetic field response of magnetoelectric laminate composites

被引：131

作者：

Dong, SX ^{[1
]}

Zhai, JY ^{[1
]}

Li, JF ^{[1
]}

Viehland, D ^{[1
]}

机构：

[1] Virginia Tech, Blacksburg, VA 24061 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 08期

关键词：

D O I：

10.1063/1.2178582

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have found that small long-type magnetoelectric (ME) laminate composites of magnetostrictive Tb1-xDyxFe2-y and piezoelectric Pb(Zr,Ti)O-3 are quite sensitive to small dc magnetic field (H-dc) variations, when driven by a constant ac magnetic field. The sensitivity limit is H-dc < 10(-3) Oe (10(-7) Tesla) using a constant amplitude low frequencies drive, and H-dc < 10(-4) Oe (10(-8) Tesla) under resonant drive. In addition, an unusual ME switching effect-a 180 degrees phase shift-was observed, in response to changes in the sign of a small H-dc. (c) 2006 American Institute of Physics.

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