Title
Equivalence of direct and converse magnetoelectric coefficients in strain-coupled two-phase systems
Abstract
We demonstrate an equivalence between direct and converse magnetoelectric effects in two-phase systems comprising piezoelectric and magnetostrictive materials. This was achieved by recasting the Maxwell relation in terms of the effective electrical and magnetic dipole moments for the system and comparing coupling strengths at the same electrical and magnetic d.c. biases. Our findings therefore apply to magnetoelectric systems comprising more than two phases and correct the two widely held but opposing views that are compromised by incorrect parameterization or inconsistent bias conditions.
Keywords
direct magnetoelectric effects, converse magnetoelectric effects, coefficients, strain-coupled two-phase systems, magnetorestrictive materials
Subject Categories
Piezoelectric materials, Dipole moments
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
3-9-2012
Rights Information
Copyright (2012) American Institute of Physics.
Rights Holder
American Institute of Physics
Recommended Citation
Lou, Jing; Pellegrini, Gerry N.; Liu, Ming; Mathur, Neil D.; and Sun, Nian X., "Equivalence of direct and converse magnetoelectric coefficients in strain-coupled two-phase systems" (2012). Electrical and Computer Engineering Faculty Publications. Paper 140.
Figure 1
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equivalencefig1.tif (410 kB)Figure 1
equivalencefig2.tif (1494 kB)
Figure 2
equivalencefig3.tif (183 kB)
Figure 3
Notes
Originally published in Applied Physics Letters v.100 (2012): 102907. DOI: 10.1063/1.3693375.