ABSTRACT
The development and characterization of a nanomagnet full adder circuit are demonstrated in this chapter. To our knowledge, this is the most complex magnetic circuit attempted to date. The circuit comprises 53 magnets that perform as three majority gates plus internal interconnections, with only one internal error. The inputs of the gate can be set independently, allowing an exhaustive test of the magnetic operation. We introduce two other different designs of a full adder circuit built from nanomagnets. We use previously demonstrated and tested nanomagnet logic (NML) components, such as inverters, wires [1], programmable inputs [2], shape-engineered magnets [3], and fanouts [4], to realize a larger-scale circuit.
