The Moore’s law has led the pace of innovation predicting an exponential growth in computing unit performances. However, as the dimensional and functional scaling of CMOS technologies approaches fundamental limits, the search for alternatives solutions has intensified. Spintronics emerges as a promising field among the so called beyond-CMOS technologies, manipulating the spins of electrons for different applications such as logic. Anyway, to best integrate this technology, spintronics needs the development of scalable and energy-efficient devices and an in-depth study of the magnetic materials used. In this context, this thesis studies some magnetoelectric devices made by composite form by thin piezoelectric and magnetostrictive layers aiming to quantify the magnetoelectric effect, which could be relevant for future spintronics applications.