2004/01/30 by V. M. Petrov, M. I. Bichurin V. M. Laletin, Petrov, V. M. +5
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0401645
3 pages, 1 figure; presented at NATO Advanced Research Workshop - MEIPIC-5, Sudak (Ukraine) Sep. 2003
arxiv created 2004/01/30 · arxiv updated 2009/12/01
We discuss a model that considers the bulk composite as a homogeneous medium with piezoelectric and magnetostrictive subsystems. We solve combined elastostatic, electrostatic and magnetostatic equations to obtain effective composite parameters (piezoelectric modules, magnetostriction factors, compliances, magnetoelectric coefficients) for 3-0 and 0-3 connectivities. Expressions for longitudinal and transverse low-frequency magnetoelectric voltage coefficients have been obtained for unclamped and clamped samples. Volume fractions for peak low-frequency effective magnetoelectric voltage coefficient are found to be dependent on specific connectivity. Clamping leads to significant variation in magnetoelectric voltage coefficients. The calculated magnetoelectric coefficients are compared with data.