The lock-in technique for studying magnetoelectric effect
The lock-in technique for studying magnetoelectric effect
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DOI：
10.1016/j.jmmm.2007.03.185
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发表时间：
2007-09-01
影响因子：
2.7
通讯作者：
Bueno-Basques, D.
中科院分区：
文献类型：
--
作者：
Giap V. Duong;Groessinger, R.;Bueno-Basques, D.
研究磁电效应的测量技术尚未建立。在这项工作中，我们报告了一种锁相技术，用于研究ME-多铁复合材料中的ME效应。讨论了测量的原理和理论。介绍了这种方法的优点和缺点。我们的实验装置的细节显示了频率范围为1至10 kHz，幅度为1至20 Oe的交流场叠加到高达15 kOe的直流偏置场上。演示了零信号和工作模式的处理。详细讨论了CoFe2O4-BaTiO3复合材料的ME研究。(c) 2007 Elsevier B.V.版权所有
Measuring techniques for studying the magnetoelectric (ME) effect are not established yet. In this work, we report about a lock-in technique for studying the ME effect in ME-multiferroic composites. The philosophy as well as the theory of measurement is discussed. The advantages and disadvantages of this method are described. Details on our experimental set-up in which an AC field with frequencies ranging from 1 to 10 kHz and amplitudes from 1 to 20 Oe are superimposed onto a DC bias field up to 15 kOe are shown. Treatments of the zero-signal and operation modes are demonstrated. ME investigations on CoFe2O4-BaTiO3 composites are discussed in details. (c) 2007 Elsevier B.V. All rights reserved.