Resonance magnetoelectric effect without a bias field in a piezoelectric langatate-hysteretic ferromagnet monolithic structure

被引：6

作者：

Burdin, D. A. ^{[1
]}

Fetisov, L. Y. ^{[1
]}

Fetisov, Y. K. ^{[1
]}

Chashin, D. V. ^{[1
]}

Ekonomov, N. A. ^{[1
]}

机构：

[1] Moscow State Tech Univ Radio Engn Elect & Automat, Moscow 119454, Russia

来源：

TECHNICAL PHYSICS | 2014年 / 59卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

Bias Field; Flexural Vibration; Ferromagnetic Layer; Magnetoelectric Effect; Permanent Magnetic Field;

D O I：

10.1134/S1063784214090060

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The frequency, field, temperature, and amplitude characteristics of the direct magnetoelectric effect are studied in a planar monolithic structure consisting of a piezoelectric langatate crystal and a layer of electrolytic nickel. A relation between the magnetic and magnetoelectric properties of the structure is demonstrated, which explains the effects observed in structures with hysteretic layers. At the planar acoustic resonance frequency of the structure (about 70 kHz), the effect amounting to 23 V/(Oe cm) in the absence of a bias field is discovered. In the temperature interval 150-400 K, the amount of the effect changes nearly twofold, the resonance frequency changes by about 1%, and the Q factor on cooling rises to about 8 x 10(3). The field sensitivity of the structure is on the order of 1 V/Oe, which makes it possible to detect magnetic fields with an amplitude down to similar to 10(-6) Oe.

引用

页码：1350 / 1355

页数：6

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