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arXiv 1409.6641cond-mat.mtrl-sci
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结合铁磁谐振器和数字图像相关技术研究磁电异质结构的应变诱导共振调谐

Combining ferromagnetic resonator and digital image correlation to study the strain induced resonance tunability in magnetoelectric heterostructures

Fatih Zighem, Mohamed Belmeguenai, Damien Faurie, Halim Haddadi, Johan Moulin

摘要:

本文报道了一种微带铁磁共振(MS-FMR)和数字图像相关(DIC)相结合的方法,用于同步测量人工磁电异质结构(磁性薄膜/压电衬底?或磁性膜/柔性衬底/压电致动器?)。描述了该技术的总体原理和相关的分析建模。该方法不仅可以用来估算铁磁薄膜的磁致伸缩系数,而且可以用来确定整个异质结构的有效磁电系数以及与面内电压应变相关的压电系数。该方法可应用于应变在不同界面处传递良好的系统。

英文摘要:

This paper reports the development of a methodology combining microstrip ferromagnetic resonance (MS-FMR) and digital image correlation (DIC) in order to silmuteanously measure the voltage-induced strains and the magnetic resonance in artificial magnetoelectric heterostructures (magnetic films/piezoelectric substrate? or magnetic films/flexible substrate/piezoelectric actuator ?). The overall principle of the technique and the related analytical modelling are described. It is powerful to estimate the magnetostriction coefficient of ferromagnetic thin films and can be used to determine the effective magnetoelectric coefficient of the whole heterostructures in addition to the piezoelectric coefficient related to the in-plane voltage-induced strains. This methodology can be applied to system for which the strains are well transmitted at the different interfaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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