Nomograph method for predicting magnetoelectric coupling

• A new quick test of magnetoelectric composites using nomographs is proposed.
• Approximate expressions in explicit form for magnetically induced magnetoelectric effect for different operational modes are derived.
• Using the nomographs enables one to predict the volume fractions of composite components and sample geometry for specific composition to provide the strongest magnetoelectric coupling.

Magnetoelectric (ME) composites are known to enable the achievement of ME voltage coefficients many orders of magnitude larger than previously reported values for single phase materials. The advancements have opened up many possibilities in applications of sensors, transformers, and microwave devices. We presented here a new quick test of ME composites using nomographs and showed its use in applications where an approximate answer is appropriate and useful. To draw the graphs for ME voltage coefficients, we derived approximate expressions in explicit form for magnetically induced ME effect for different operational modes and laminate composite configurations including symmetrical and asymmetrical structures.