A multiplier device for binary magnetic applied fields uses Interlayer Exchange Coupling (IEC) structure where two layers of ferromagnetic material are separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. A plurality of regions on a top surface are activated with a magnetic field in a first direction for a 1 value and in an opposite direction for a 0 value, the multiplication result presented as magnetic field direction on a plurality of output ferromagnetic regions.

A multiplier device for binary magnetic applied fields uses Interlayer Exchange Coupling (IEC) structure where two layers of ferromagnetic material are separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. A plurality of regions on a top surface are activated with a magnetic field in a first direction for a 1 value and in an opposite direction for a 0 value, the multiplication result presented as magnetic field direction on a plurality of output ferromagnetic regions.