Patent ID: 8921962

Claim:
A magnetostrictive-piezoelectric multiferroic nanomagnet for implementing low energy two state Boolean logic and information processing or multistate Boolean and non-Boolean logic and information processing comprising: a silicon base layer on which is formed a first electrical contact; a magnetostrictive layer and a piezoelectric layer formed over the silicon base layer and arranged such that magnetization of the magnetostrictive-piezoelectric multiferroic nanomagnet can be rotated through an of an electric field across the piezoelectric layer; a barrier layer followed by a hard magnet layer deposited over the magnetostrictive layer; and a second electrical contact, wherein the first and second electrical contacts apply the electric field across the piezoelectric layer through the magnetostrictive layer and generate a stress or a strain in the piezoelectric layer that is transferred to the magnetostrictive layer, wherein only the stress or the strain rotates magnetization of the magnetostrictive layer without applying a spin polarized current through the magnetostrictive-piezoelectric multiferroic nanomagnet, wherein the hard magnet layer comprises a magnetically hard layer separated from a synthetic anti-ferromagnet (SAF) layer by a suitable spacer layer to minimize dipole coupling between the layers, and wherein a read operation of the nanomagnet is facilitated using magnetic tunneling junction (MTJ) technology.