Were proper safety equipment.

Totally, multiferroic materials divided into two types: 1) single-phase multiferroic, which possesses at least two ferroic properties in a phase, such as BiFeO3 with a coexistence of ferroelectric and magnetic ordering at room temperature 2) composite multiferroic or magneto-electric (ME) composites.

In the ME composites, it is necessary that both phases support the magneto-electric effect. This ME effect can arise via stress/strain.

For more information about ME composites you can read the below review with focusing on the composite multiferroic materials rather than single-phase multiferroics.

Multiferroic magnetoelectric composite nanostructures: review

Doi: 10.1038/asiamat.2010.32

would you please share some details? Method? Materials?

Making a magnetoelectric composite is easy.

Lets say you BaTiO3 and CoFe2O4 well reacted powders together in some proportion.

(50: 50 , 40:60) and make a sintered ceramic. Alternately you can try PZT and CoFe2O4 also.

1) You have to electrode the composite ceramic on both side, with fired-on silver paste. on both sides.

2) Their resistivity should be high 1e8 to 1e9 ohm cm.

3) The should be poled, and you must have some good measurable D33, piezoelectric coefficient. 

4) You can also measure hysteresis loops if you have the equipment.

5) As a first step make some magneto dielectric measuremens, where you should observe some reasonable change in the dielectric properlties under applied magnetic fields.

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Now comes the complication, in order to make magnetoelectric measurements, it is not simple and straightforward. and you need some different types of equipment.

Should know the measurement principle.

Have some working knowledge in magnetic measurements, and doing lock-in amplifier measurements.

These are simple. But may demand a lot of reading, collecting a lot of papers available in the literature, and understand the whole philosophy behind the magnetoelectric measurements.

Prof. K. Sreenivas 

• is it possible to make a composite in which one material belongs to type 1 multiferroic while other from type 2 multiferroic material?