SUMMARY

Next neighbour eld coupling of nanodevices is emerging as an alternative way to integrate nano-electronic devices (Nanotechnology 1993; 4:49). In this paper, integrated circuits composed of single domain nanomagnets are proposed. New magnetic eld-coupled devices with multiple equilibrium states are introduced. The devices are made locally active by exposing them to external magnetic elds. Non-reciprocity is achieved by proper design of the nanomagnet’s shape together with its clocking. We demonstrate that (i) digital signal can propagate along a line of coupled single domain nano-magnets; (ii) and a family of logic circuits (inverter, majority gate, etc.) can be realized. Based on these observations we envision a new nanoelectronic computing architecture as a two-dimensional ar-ray of eld-coupled nanomagnets. We estimate an integration density of 1010 device=cm2, few hundred MHz operation speed, straightforward fabrication technology and robust operation in a wide temperatur