Demagnetizing factors for two parallel ferromagnetic plates and their applications to magnetoelectric laminated sensors

被引:24
作者
Liverts, E. [1 ,2 ]
Grosz, A. [2 ]
Zadov, B. [2 ]
Bichurin, M. I. [3 ]
Pukinskiy, Y. J. [3 ]
Priya, S. [4 ]
Viehland, D. [4 ]
Paperno, E. [2 ]
机构
[1] Ben Gurion Univ Negev, Dept Mech Engn, IL-84105 Beer Sheva, Israel
[2] Ben Gurion Univ Negev, Dept Elect & Comp Engn, IL-84105 Beer Sheva, Israel
[3] Novgorod State Univ, Dept Design & Technol Radioequipment, Veliky Novgorod 173003, Russia
[4] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA
关键词
COMPOSITES;
D O I
10.1063/1.3536518
中图分类号
O59 [应用物理学];
学科分类号
摘要
An analytical expression is derived to approximate the magnetometric demagnetizing factors for two parallel ferromagnetic plates having the shape of rectangular prisms. The magnetometric demagnetizing factors relate the average magnetic fields within the plates' volumes to an external magnetic field. Knowing this relationship is essential for describing the response of magnetoelectric sensors comprising two parallel magnetostrictive plates. It is shown that two separate ferromagnetic layers provide better field sensitivity than a single layer with a doubled thickness. The obtained results are in a good agreement with numerical calculations and experimental data. (C) 2011 American Institute of Physics. [doi:10.1063/1.3536518]
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页数:3
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